You just agreed to borrow money from your aunt. She agreed to lend you $$10,000$ today. You agreed to pay her $$1,400$ per year for ten years. What annual interest rate is she charging you?

A$.5\mathrm{.}34\%$

B$.7\mathrm{.}75\%$

C$.6\mathrm{.}64\%$

D$.4\mathrm{.}55\%$

E$.$ Cannot solve without more information