If a $6-$month T$-$Bill with a face value of $$100$ is purchased at a $9\%$ annual discount, the buyer will pay $$95\mathrm{.}5(4\mathrm{.}5\%$ for six months$)$ and will have received $$100$ at maturity. The holding period return on this T$-$Bill is

a$.$

$3\mathrm{.}65$

b$.4\mathrm{.}71$

c$.5\mathrm{.}54$

d$.6\mathrm{.}00$

e$.7\mathrm{.}32$ f$.8\mathrm{.}8$ g$.9\mathrm{.}6$

h$.10$ i$.-$$$13$