问题如下图：
选项：
A. 
B. 
C. 
解释：
老师能不能把公式写出来一下，看答案还是不是很清楚
NO.PZ201512300100000702 operating liabilities relative to operating assets. competitiveness relative to companies in other tregimes. Bis correct. Return on investecapitis net operating profit minus austetaxes viinvestecapital, where investecapitis fineoperating assets minus operating liabilities. operating asset和liability包括哪些科目咯～指的是current asset和current liability吗～谢谢
NO.PZ201512300100000702 老师 为什么ROE会受杠杆比例的影响？
题目里哪里可以得出这个结论？
请问c错在何处？
