I don't understand these questions

Each project has a life of 5 years.The company uses the NPV method to evaluate capital budgeting projects and its discount rate is 10%.

Project AProject BProject C

Initial cash outlay (cost)-$5,000,000-$6,000,000-$2,500,000

Cash inflows per year$1,500,000$1,800,000$600,000

Residual value$ 500,0000$100,000

1.If the projects are mutually exclusive, which, if any, should the company accept?Why?

2.If the projects are independent, which, if any, should the company accept?Why?

3.One of the company states "To me, no matter what else we do, Project C needs to be our first choice because it has the lowest initial cost of $2,500,000."Comment on this manager's proposal, considering the concepts of NPV and Payback Method.