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Stocks A$,$ B$,$ and C have expected returns of $28$ percent, $28$ percent, and $25$ percent, respectively, while their standard deviations are $42$ percent, $35$ percent, and $35$ 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 Stock $A$

Coefficient of variation of Stock B

Coefficient of variation of Stock C

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