Consider two stocks, namely Stock A and Stock B$.$ Their expected returns and volatilities are listed below:

Stock A: Expected returns, $8\%,$ and Volatility of $15\%$

Stock B: Expected returns of $12\%,$ and volatility of $30\%$

Also, assume that the risk$-$free rate is Rf$=2\%,$ and the correlation between the two stocks equals $=0\mathrm{.}5.$ If CAPM holds and only Stock A and B are available in this economy, what is the composition of the market portfolio $($weight on Stock A$,$ weight on Stock B$)?$