$(20$ Points$)$ If a project costs $$100,000$ and you will get $20,000$ a year for $10$ years what is the payback period. Use the payback method to obtain the payback period.

a$.$ Can you accept a project based on the payback method alone, explain your answer:

b$.$ Can you reject a project based on the payback method alone, explain your answer:

Perform a differential analysis. $20$ points each $-40$ total points