Assume that the CAPM is a good description of stock price returns. The market expected return is $8\%$ with $12\%$ volatility and the risk$-$free rate is $3\mathrm{.}5\%.$ New news arrives that does not change any of these numbers but it does change the expected return of the following stocks: $1.$

a$.$ At current market prices, which stocks represent buying opportunities?

b$.$ On which stocks should you put a sell order in$?$

Complete the table with the alphas below: $($Round to one decimal place.$)$

$\backslash$table$[[,$Expected Return,Volatility,Beta,Alpha$],[$Green Leaf,$12\%,20\%,1\mathrm{.}50,\%$