In order to set up a fund to cover their child's education costs, some parents are considering placing an amount in a trust account on the child's 10th birthday. They estimate that the education fund should allow their child to withdraw $ 3,500 annually, from his 16th to 21st birthday inclusive. How much should they invest, knowing that the fund's rate of return is estimated at 3% per year for the entire term?

A. $ 15,878.84

B. $ 13,826.73

C. $ 16,355.21

D. $ 13,424.01

E. $ 17,587.17