just need help on part B

Afirm's cost of capital is 10 percent. The firm has three investments to choose among the cash flows of each are as follows: Cash Inflows Year A B 1 2 3 4 $660 $1,972 660 660 $ 2,973 Each investment requires a $1,700 cash outlay, and investments B and Care mutually exclusive. Use Appendix A. Appendix and Appendix D to answer the questions. Assume that the investments are not mutually exclusive and there are no budget restrictions a which investments) should the firm make according to the net present values? Use a minus sign to enter negative values, if any. Round your answers to the nearest dollar A: 5 -58.69 330.73 CS 92.72 > The firm should make investments) 6. Which investment() should the firm make according to the internal rates of return? Round your answers to the nearest whole number A 5 C The firm should make investments