Daphne was given a gift of $60. After keeping the money in a drawer in her room for 4 months, Daphne deposited it into a savings account where it earned compounded interest at a monthly rate for 5 months. Then Daphne moved her money to a checking account and spent it at a constant monthly rate for 11 months.

The graph shows the functional relationship between the amount of Daphne's money and the number of months since she received the gift, but the graph contains an error. Based on the description above of Daphne's activity with her money, identify the error in the graph. Which of the following statements offers a revision which could make the graph correct?