Please give a detailed explanation. Thank you!

Also, can you distinguish between options A and B?

8. You are considering the following two projects. The required rate of return is 15 percent for project A and 14 percent for project B. Which project should you take and why? A. Take project A and reject project B if A and B are independent; because A has a bigger positive NPV. B. Take project A and reject project B if A and B are mutually exclusive; because A has a bigger positive NPV. C. Take project B and reject project A if A and B are independent; because B has a bigger positive NPV. D. Take project B and reject project A if A and B are independent; because B has the lower required return. E. Take project B and reject project A if A and B are mutually exclusive; because B has the lower required return