Please show me each equation you used along with all the steps, thanks

Problem 4 You have just won a lottery of $1 million and you can choose among the following three payout options. The effective annual interest rate (EAR) is 5%. Option A: $200,000 right now and $100,000 every two years, starting 2 years from now and ending 16 years from now. Option B: $100,000 a year at the end of the next 10 years, with the first payment one year from today. Option C: Twenty annual payments of $40,000 and a 21st payment of $200,000. The first payment is made right now. The 21st payment is due 20 years from now. Please calculate the present values of all three options. Which option should you choose? Problem 5 Today is January 1, 2019, and your friend Arnold Armstrong signs a 4-year contract to play for a minor league football team. He will receive $300,000 for 2019, $500,000 for 2020, $700,000 for 2021, and $900,000 for 2022. All payments are made at the end of year. Assume 10% annual interest rate (EAR). a. What is the present value of his contract? b. If instead of annual payments he wants equal dollar amount month-end cheques over his contract period, starting January 31, 2019, how large is his monthly pay