Which of the following is true concerning the optimal capital budget?
A. It is the sum of the initial investment cost for all projects whose NPV is less than 0.
B. It is the sum of the initial investment cost for all projects whose IRR is less than WACC.
C. It is the sum of the initial investment cost for all projects whose IRR is greater than WACC.
D. It is the sum of the initial investment cost for all projects whose IRR is equal to WACC.