Bob corporation is evaluating two projects. Project A has $$60,000$ in upfront cost, and has after tax cash flows of $$12,000,$ $$24,000,$ and $$40,000$ during the first three years. Project capital B has $$90,000$ in upfront cost, and has after tax cash flows of $$18,000,$ $$32,000,$ and $$62,000.$ The companies WACC is $5\%.$ A$)$ what is the NPV and IRR for project A$?$ B$)$ What is the NPV and IRR for porject B$?$ C$)$ if the projects are independent, should the company do either or both of them? D$)$ if the projects are mutually exclusive, which, if either should it do$?$