Given an optimal risky portfolio with expected return of $14\%$ and standard deviation of $22\%$ and a risk free rate f$4\%,$ what is the slope of the best feasible CAL?

$$ a$.0\mathrm{.}64$

$$ b$.0\mathrm{.}45$

c$.0\mathrm{.}14$

$$ d$.0\mathrm{.}08.$ e$.0\mathrm{.}33$