Newex, Inc. has a capital investment opportunity with the following cash flows:

Yearcash flow

0(100,000)

115,000

235,000

330,000

430,000

Which of the following is closest to the project's payback period?

a) 3.7 years

b) 2.8 years

c) 3.5 years

d) 4.2 years

e) 2.5 years