Gretta's Portfolio Consists of $700, 000 Invested in a Stock

Gretta's portfolio consists of $700, 000 invested in a stock that has a beta of 1.2 and $300, 000 invested in a stock that has a beta of 0.8.The risk-free rate is 6% and the market risk premium is 5%.Which of the following statements is CORRECT?

A) The required return on the market is 10%.
B) The portfolio's required return is less than 11%.
C) If the risk-free rate remains unchanged but the market risk premium increases by 2%, Gretta's portfolio's required return will increase by more than 2%.
D) If the market risk premium remains unchanged but expected inflation increases by 2%, Gretta's portfolio's required return will increase by more than 2%.
E) If the stock market is efficient, Gretta's portfolio's expected return should equal the expected return on the market, which is 11%.