3. ABC Corporation has evaluated 6 independent projects to take on next year and obtained the following results (all numbers are in millions of USS): Project A: initial cost-6: NPV = 8 Project B: initial cost=5; NPV = 6 Project C: initial cost=8; NPV - 12 Project D: initial cost = 7: NPV = 10 Project E: initial cost = 4; NPV =4 Project F: initial cost = 2; NPV = -1 a. Calculate the amount of the optimal capital budget for the next year. b. If the board of directors decides that only $25 million will be spent on new investment projects next year and no fractional project can be accepted, which projects should be accepted