问题如下图：
选项：
A. 
B. 
C. 
解释：
c选项大概什么意思呀？为什么不对呢
NO.PZ2018062002000061 问题如下 vin, Egbert, anHumphrey, financianalysts from the same investment firm, gave the following personinsights on sector inces:vin:Sector inces trafferent economic sectors ancannot aggregateto represent the equivalent of a bromarket inx.Egbert:Sector inces provi a means to termine whether active investment manager is more successful stoselection or sector allocation.Humphrey:Sector inces apply a universally agreeupon sector classification system to intify the constituent securities of specific economic sectors, suconsumer goo, energy, finance, health care.Whose statement is most correct? A.vin. B.Egbert. C.Humphrey. is correct.The Sector Inx provis a wto termine whether active investment manager is more successful stoselection or sector allocation.考点行业指数这道题就是考察行业指数的用途vin:行业指数跟踪不同的经济部门，不能汇总到一起代表一个广泛的市场指数。（后半句说反了，caggregateto represent the equivalent of a bromarket inx）Egbert:行业指数提供了一种方法来判断一个活跃的投资经理在股票选择或行业配置方面是否更成功。正确Humphrey:行业指数应用一个公认的行业分类系统来识别特定经济部门的组成证券，比如消费品、能源、金融和医疗。(错，不存在universally agreeupon sector classification system) A说题干应改成aggregate 指数不能相加吧
NO.PZ2018062002000061 问题如下 vin, Egbert, anHumphrey, financianalysts from the same investment firm, gave the following personinsights on sector inces:vin:Sector inces trafferent economic sectors ancannot aggregateto represent the equivalent of a bromarket inx.Egbert:Sector inces provi a means to termine whether active investment manager is more successful stoselection or sector allocation.Humphrey:Sector inces apply a universally agreeupon sector classification system to intify the constituent securities of specific economic sectors, suconsumer goo, energy, finance, health care.Whose statement is most correct? A.vin. B.Egbert. C.Humphrey. is correct.The Sector Inx provis a wto termine whether active investment manager is more successful stoselection or sector allocation.考点行业指数这道题就是考察行业指数的用途vin:行业指数跟踪不同的经济部门，不能汇总到一起代表一个广泛的市场指数。（后半句说反了，caggregateto represent the equivalent of a bromarket inx）Egbert:行业指数提供了一种方法来判断一个活跃的投资经理在股票选择或行业配置方面是否更成功。正确Humphrey:行业指数应用一个公认的行业分类系统来识别特定经济部门的组成证券，比如消费品、能源、金融和医疗。(错，不存在universally agreeupon sector classification system) 我觉得A的表述“bromarket”应该不对吧，针对某一个Sector来讲，某一个Sector inx只能是代表特定sector的market而不是bromarket
NO.PZ2018062002000061问题如下vin, Egbert, anHumphrey, financianalysts from the same investment firm, gave the following personinsights on sector inces:vin:Sector inces trafferent economic sectors ancannot aggregateto represent the equivalent of a bromarket inx.Egbert:Sector inces provi a means to termine whether active investment manager is more successful stoselection or sector allocation.Humphrey:Sector inces apply a universally agreeupon sector classification system to intify the constituent securities of specific economic sectors, suconsumer goo, energy, finance, health care.Whose statement is most correct?A.vin.B.Egbert.C.Humphrey. is correct.The Sector Inx provis a wto termine whether active investment manager is more successful stoselection or sector allocation.考点行业指数这道题就是考察行业指数的用途vin:行业指数跟踪不同的经济部门，不能汇总到一起代表一个广泛的市场指数。（后半句说反了，caggregateto represent the equivalent of a bromarket inx）Egbert:行业指数提供了一种方法来判断一个活跃的投资经理在股票选择或行业配置方面是否更成功。正确Humphrey:行业指数应用一个公认的行业分类系统来识别特定经济部门的组成证券，比如消费品、能源、金融和医疗。(错，不存在universally agreeupon sector classification system) a为什么错呢？所以a到底能不能汇总代表？can还是cannot
Egbert. Humphrey. B is correct. The Sector Inx provis a wto termine whether active investment manager is more successful stoselection or sector allocation. 考点行业指数 这道题就是考察行业指数的用途 vin:行业指数跟踪不同的经济部门，不能汇总到一起代表一个广泛的市场指数。（后半句说反了，caggregateto represent the equivalent of a bromarket inx） Egbert:行业指数提供了一种方法来判断一个活跃的投资经理在股票选择或行业配置方面是否更成功。正确 Humphrey:行业指数应用一个公认的行业分类系统来识别特定经济部门的组成证券，比如消费品、能源、金融和医疗。(错，不存在universally agreeupon sector classification system) 老师，c的解析没看懂。“公认的行业分类方法”不就是universally agreeclassification嘛？英文不好，麻烦再一下c为什么不对，谢谢
老师您好，我想知道为什么行业指数会是一种能决定为什么一个主动投资经理在股票选择上更成功还是在行业综合上更成功
