Kollo Enterprises has a beta of $0\mathrm{.}70,$ the real risk$-$free rate is $2\mathrm{.}00\%,$ investors expect a $3\mathrm{.}00\%$ future inflation rate, and the market risk premium is $4\mathrm{.}70\%.$ What is Kollo's required rate of return? Do not round your intermediate calculations.

a$.8\mathrm{.}20\%$

b$.7\mathrm{.}39\%$

C$.8\mathrm{.}29\%$

d$.6\mathrm{.}29\%$

e$.6\mathrm{.}79\%$