Note: I want the answers for all questions

and please if you don't the answer don't wrote a wrong one because you will make me lost the question and the chance for correct answer

LULU Enterprise is trying to select the best investment from among four alternatives. Each alternative involves an initial outlay of $100,000. The inflation rate is around 10%. The cash flows of the projects expected over the next 5 years follow: Year A B C D 1 $10,000 20,000 40,000 $0 2 20,000 60,000 10,000 20,000 20,000 3 30,000 20,000 50,000 4 20,000 0 80,000 40,000 50,000 5 5 20,000 0 20,000 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