A firm with a 13 percent cost of capital is evaluating two projects for this year's capital budget. The projects' expected after-tax cash flows are as follows: Year: 0 1 2 3 Project X: -$14,000 $4,500 $4,600 $7,600 Project Y: $15,000 $7,800 $5,600 $6,800 If Projects X and Y are independent, which one(s) should the firm adopt? O a. Project X only O b. Project Y only O c. Neither project O d. Both projects