You are the money manager of a $2 million dollar portfolio. The portfolio consists of 4 stocks with an equal investment in each one. The betas of the 4 stocks are 1.25, -1.75, 1.00, and 0.75. The markets required return is 12% and the risk-free rate of return is 4%. How does the riskiness of this portfolio compare to an average risk portfolio assuming the market is a reasonable proxy for average risk?

A. This portfolio is riskier than the average risk portfolio

B. This portfolio is less risky than an average risk portfolio

C. This portfolio's risk is equivalent to that of an average risk portfolio

D. Cannot be determined from the given information