Answer:
The first financing plan will result in the smaller average cost of capital of 10.8%
Explanation:
In the first option:
WACC = (equity fraction)(cost of equity capital)+ (debt fraction)(cost of debt capital)
= (60*12%) + (40*9%)
= 10.8%
In the second option:
WACC = (equity fraction)(cost of equity capital)+ (debt fraction)(cost of debt capital)
= (20*12%) + 80*12.5%)
= 12.4%
Therefore, The first financing plan will result in the smaller average cost of capital of 10.8%