The yield to maturity on a coupon bond is $9\%$ while the coupon rate is $4\mathrm{.}55\%.$ If the inflation

rate is $3\mathrm{.}5\%,$ what is the real rate of return?

Select one:

a$.1\mathrm{.}05\%$

b$.5\mathrm{.}31\%$

c$.5\mathrm{.}50\%$

d$.8\mathrm{.}05\%$

e$.4\mathrm{.}45\%$