Below are the expected after-tax cash flows for Projects Y and Z. Both projects have an initial cash outlay of $20,000 and a required rate of return of 17%. Project Y Project Z Year 1 $12,000 $10,000 Year 2 $8,000 $10,000 Year 3 $6,000 0 Year 4 $2,000 0 Year 5 $2,000 0 Payback for Project Y is A) two years. B) one year. C) three years. D) four years.