Susan deposits $5,000 into a money-market account earning 7% per year, and keeps depositing twice the amount every two years for a total of 6 years after she started the account. In other words she deposits $5,000 on Year 0, $10,000 on Year 2, $20,000 on Year 4 and $40,000 on Year 6. How much money will she have in her account at the end of Year 9 if the money was earning the initial interest rate for the entire time?

A. $92,369

B. $79,636

C. $102,303 *Correct answer, need problem worked out

D. $110,818