Thomas wants to buy a used car that costs $4,500. He has already saved $3,300 and will borrow the rest of the money. A credit union will lend Thomas the remaining money that he needs at a simple interest rate of 3.5%. He must repay the loan within 3 years. Thomas does not want his total loan, with interest, to be more than $1,300, and he cannot afford a monthly payment over $100. Which of the following explains the best plan for Thomas to pay off the loan?