Assuming payments are made at the end of each year, what is the annual payment required to retire a $50,000 loan with a term of 5 years and an interest rate of 10%; how much of this payment represents interest at the end of year 1? a. $8,189.87; $5,000 b. $13,189.87; $5,000 c. $13,189.87; $8,189.87 d. $13,189.87; $13,189.87 e. $5,000; $5,000