Consider the following project and assume that you require a 10% return on your investment.

Year Cash Flow

0 -$200,000

1 80,000

2 70,000

3 60,000

4 50,000

a. What is the payback period?

b. What is the NPV of the project?

c. Is the IRR of the project 2.61%, 4.61%, or 6.61%?

Please show all work, thanks!