A preferred stock has a par value of $$50$ and a dividend yield of $5\%.$ The yield on T$-$Bills is $4\%.$ If the stock is currently trading at $$52,$

a$.$ The required rate of return is $5\%$

b$.$ The required rate of less than $5\%$ because the stock is trading at a premium

c$.$ The required rate of return is $4\%$ because the stock pays a constant dividend

d$.$ The required rate of return is $4\mathrm{.}8\%$

e$.$ b and d