Stocks A$,$ B$,$ and C have expected returns of $14$ percent, $14$ percent, and $10$ percent, respectively, while their standard deviations are $49$ percent, $21$ percent, and $21$ percent, respectively. If you were considering the purchase of each of these stocks as the only holding in your portfolio and the risk$-$free rate is $0$ percent, which stock should you choose? $($Round answers to $2$ decimal places, e$.$g$.15\mathrm{.}25.)$

Coefficient of variation of StockA

Coefficient of variation of Stock B

Coefficient of variation of Stock $C$

Choose