A stock has a beta of $2\mathrm{.}1,$ the expected return on the market is $9\mathrm{.}2\%$ and the risk$-$free rate is $2\mathrm{.}3\%.$ Based on it's current price, the stock has an expected return of $10\mathrm{.}9\%.$ Based on the predictions of the CAPM, how would you describe this stock?

a$.$ Underpriced.

b$.$ Overpriced.

c$.$ Correctly priced.

d$.$ Impossible to say without knowing the price of the stock.