A preferred stock pays an annual dividend of $$6.$ If you want to earn $7\mathrm{.}5$ percent APR on this investment, what is the maximum amount you should pay to purchase one share of this stock today? $($Hint: You should treat the cash flows of a preferred stock as a perpetuity.$)$

Group of answer choices

b$.$ $$79$

d$.$ $$81$

a$.$ $$78$

c$.$ $$80$