Adidas has been offered a contract by USC Athletics to produce new gear for all student$-$athletes. The contract would last for four years and Adidas's cash flow from the contract would be $$2\mathrm{.}5$ million per year. Adidas's upfront setup costs to be ready to produce all the new gear would be $$8\mathrm{.}0$ million. Their discount rate would be $6\mathrm{.}0\%.$

a$.$ What is the NPV of this project for Addidas? Should Addidas accept this project based on the NPV rule?

b$.$ What is the project's IRR? Should Addidas accept this project based on IRR rule?

c$.$ What is the project's payback period? Should Addidas accept this project if it requires a payback period of $3$ years or less? $($When answering this question, you can either provide precise number of years in your answer or round the result up to the nearest integer