Craig's Car Wash Inc. is considering a project that has the following cash flow and cost of capital (r) data. What is the project's discounted payback?

r = 10.00%

Year 0 -$900

1 $500

2 $500

3 $500

a. 2.09 years

b. 2.52 years

c. 1.88 years

d. 2.29 years

e. 2.78 years