Please explain why this answer is correct?

Question 3 0/ 1 pts A project has a net present value of $2,500 and an initial cash outlay of $2,500. This project's: o profitability index is less than 1.0. O profitability index is equal to 1.0. Correct Answer O required return is less than its internal rate of return. payback period is less than 1 year. payback period is less than 1 year.. You Answered O required return is equal to its internal rate of return. incorrect