If rRF $=5\%,$ rM $=11\%,$ and b $=1\mathrm{.}6$ for Stock X$,$ what is rx$,$ the required rate of return for Stock X$?$

Question $11$ options:

a$.13\mathrm{.}7\%$

b$.16\mathrm{.}8\%$

c$.14\mathrm{.}6\%$

d$.15\mathrm{.}8\%$

e$.12\mathrm{.}9\%$