PMI Exam PgMP Topic 1 Question 54 Discussion

The program selection committee presents several programs for approval:

Program A is estimated to cost US$250,000, and has an annual cash inflow of US$75,000. Program B is estimated to cost US$150,000, and has an annual cash inflow of US$55,000. Program C is estimated to cost US$100,000, and has an annual cash inflow of US$45,000. Program D is estimated to cost US$200,000, and has an annual cash inflow of US$35,000.

Which program was selected based solely on a three-year return on investment?