Please help as quickly as possible! thanks

1.Which of the following capital budgeting evaluation techniques will always produce the correct project choice, for both independent and mutually exclusive projects?

a.NPV

b.IRR

c.Payback Period

d.Profitability Index

e.None of the above will always indicate the best project choice.

2.You are offered an investment with returns of $ 1,768 in year 1, $ 4,636 in year 2, and $ 3,972 in year 3. The investment will cost you $ 8,994 today. If the appropriate Cost of Capital is 11.2 %, what is the Net present Value of the investment?