NO.PZ2016021706000034
问题如下：
The main factor that affects the financial leverage is:
选项：
A.The trade-off between fixed and variable costs.
B.Cost of equity
C.Capital structure and cost of debt.
解释：
C is correct.
Financial leverage is the degree to which a company uses fixed-income securities such as debt. Financial leverage increases with the level and cost of debt.
这里的利息不包括股票的利息吗？B选项的意思是否是发行股票的利息呢？
