The return from US Treasury bill is $5\%.$ The expected rate of

return required by the market for a portfolio is $15\%.$ According

to the CAPM, what is the rate of return of a stock with a Beta of

$2\mathrm{.}5?$

a$.10\%$

b$.28\%$

c$.30\%$

d$.32\mathrm{.}75\%$