At the beginning of January 2003, Jill invested money in an account that collected interest, compounding monthly. Assume the annual percentage rate of interest remained constant. What is the total amount she has invested after seven years?

(1) Her initial investment was $15,000

(2) In April 2004, she earned $38.93 in interest

[spoiler]OA=C[/spoiler]

Source: Magoosh