Suppose you have $$2,100$ and plan to purchase a $10-$year certificate of deposit $($CD$)$ that pays $12\mathrm{.}2\%$ interest, compounded annually. How much will you have when the CD matures?

a$.$ $$2,356\mathrm{.}20$

b$.$ $$6,639\mathrm{.}69$

c$.$ $$5,917\mathrm{.}73$

d$.$ $$6,863\mathrm{.}21$

e$.$ $$7,713\mathrm{.}90$