The answer is 0.63%. Please walk through the steps on how to determine alpha of this portfolio.

Consider three stocks A,B, and C for which you have the following information: Moreover, you know that the risk-free rate is Rf=0.5% and the market expected return is E[RM]=15%. Using the three stocks, you decide to form a portfolio that has the same systematic risk as the market (i.e., the beta of the portfolio is p=1 ) while making sure that stocks A and B receive equal weights. What is the alpha of that portfolio