A&B Enterprises Is Trying to Select the Best Investment from Among

A&B Enterprises is trying to select the best investment from among four alternatives. Each alternative involves an initial outlay of $100,000. Their cash flows follow:
Evaluate and rank each alternative based on a) payback period, b) net present value (use a 10% discount rate), and c) internal rate of return.
A) Payback period
Based on payback period, our choice is B.
B) Net present value (NPV)
PV of Inflows @ 10%
Based on net present value analysis, our first choice is D, followed by A, then
B. We would not select alternative C.
C) Internal rate of return (IRR)