If coupon rate is more than going rate of interest, then bond will be sold________?

The DuPont Identity tells us that Return on Equity is affected by:

A. The DuPont Identity tells us that Return on Equity is affected by:
B. asset use efficiency (as measured by total assets turnover)
C. financial Leverage (as measured by equity multiplier)
D. all of the given options (a, b and c)