I need help with #1. Show work to get the solutions that are below.

An oil-drilling company must choose between two mutually exclusive extraction projects, and each costs $12 million. Under Plan A, all the oil would be extracted in year 1, producing a cash flow of $14.4 million. Under Plan B, cash flows would be $2.1 million per year for 20 years. The firm's WACC is 12%. a. Construct NPV profiles for plan A and plan B, identify each project's IRR, and show/find the approximate crossover rate. 2. What do IRR/NPV method assume for the reinvestment assumption? Calculate NPVs for each plan (as shown in the table below) and graph each plan's NPV profile. Discount Rate NPV Plan A 0%$2,400,000$30,000,000 5.1,714,28614,170,642 101,090,9093,685,8325,878,484 12857,1433,685,832 15521,739321,144,596 16.720339,332001,773,883