esg  exposure

NO.PZ2022120703000091 问题如下 Whiof the following statements about ESG portfolio optimization is most accurate? A.ESG portfolio optimization via constraints applies a fixecision on specific securities B.Portfolios thoptimize for a combination of ESG absolute ta ansubjective rankings minimize active risk to achieve both targets C.Optimizations with a targeteESG exposure threquires tighter constraints mresult in increase in viation from optimportfolio C is correbecause \"it is important to unrstanthtargeteexposure threquires tighter constraints mlikely result in increase in viation from optimportfolio.\"A is incorrebecause \"ESG optimisation via constraints stinguishes itself from exclusionary screening in thit es not apply a fixecision on specific securities. Rather, it is organising the securities their inviESG profile to solve a specific ESG optimisation the overall portfolio level not on specific securities\".B is incorrebecause \"not surprisingly, portfolios thoptimize for multiple factors – particularly a combination of absolute ta ansubjective rankings – mhave to accept higher not lower active risk to achieve both targets.\" 不是很懂这到题目在问什么，考点是书上哪里

NO.PZ2022120703000091 问题如下 Whiof the following statements about ESG portfolio optimization is most accurate? A.ESG portfolio optimization via constraints applies a fixecision on specific securities B.Portfolios thoptimize for a combination of ESG absolute ta ansubjective rankings minimize active risk to achieve both targets C.Optimizations with a targeteESG exposure threquires tighter constraints mresult in increase in viation from optimportfolio C is correbecause \"it is important to unrstanthtargeteexposure threquires tighter constraints mlikely result in increase in viation from optimportfolio.\"A is incorrebecause \"ESG optimisation via constraints stinguishes itself from exclusionary screening in thit es not apply a fixecision on specific securities. Rather, it is organising the securities their inviESG profile to solve a specific ESG optimisation the overall portfolio level not on specific securities\".B is incorrebecause \"not surprisingly, portfolios thoptimize for multiple factors – particularly a combination of absolute ta ansubjective rankings – mhave to accept higher not lower active risk to achieve both targets.\" 如题。请问考点是书上哪里

NO.PZ2022120703000091 问题如下 Whiof the following statements about ESG portfolio optimization is most accurate? A.ESG portfolio optimization via constraints applies a fixecision on specific securities B.Portfolios thoptimize for a combination of ESG absolute ta ansubjective rankings minimize active risk to achieve both targets C.Optimizations with a targeteESG exposure threquires tighter constraints mresult in increase in viation from optimportfolio C is correbecause \"it is important to unrstanthtargeteexposure threquires tighter constraints mlikely result in increase in viation from optimportfolio.\"A is incorrebecause \"ESG optimisation via constraints stinguishes itself from exclusionary screening in thit es not apply a fixecision on specific securities. Rather, it is organising the securities their inviESG profile to solve a specific ESG optimisation the overall portfolio level not on specific securities\".B is incorrebecause \"not surprisingly, portfolios thoptimize for multiple factors – particularly a combination of absolute ta ansubjective rankings – mhave to accept higher not lower active risk to achieve both targets.\" 这题不是很理解，请说明下

NO.PZ2022120703000091问题如下 Whiof the following statements about ESG portfolio optimization is most accurate? A.ESG portfolio optimization via constraints applies a fixecision on specific securitiesB.Portfolios thoptimize for a combination of ESG absolute ta ansubjective rankings minimize active risk to achieve both targetsC.Optimizations with a targeteESG exposure threquires tighter constraints mresult in increase in viation from optimportfolio C is correbecause \"it is important to unrstanthtargeteexposure threquires tighter constraints mlikely result in increase in viation from optimportfolio.\"A is incorrebecause \"ESG optimisation via constraints stinguishes itself from exclusionary screening in thit es not apply a fixecision on specific securities. Rather, it is organising the securities their inviESG profile to solve a specific ESG optimisation the overall portfolio level not on specific securities\".B is incorrebecause \"not surprisingly, portfolios thoptimize for multiple factors – particularly a combination of absolute ta ansubjective rankings – mhave to accept higher not lower active risk to achieve both targets.\" 老师，ABC三个意思都不太懂。请下一些术语的意思，如固定决策，constrain，active risk，还有其他词汇，感觉就算翻译成中文，也不知道想说的是啥。