Stern Associates is considering a project that has the following cash flow data. What is the project's payback?

Year 0 1 2 3 4 5

Cash flows -$725 $300 $310 $320 $330 $340

a. 2.69 years b. 2.36 years c. 1.89 years d. 2.67 years e. 2.57 years