If the market-risk premium were 4% and a security's beta coefficient were 2.0, what would be the required rate of return for the security? (The risk-free return is fixed at 6% in this graph.) 4% 6% 10% 14% -Select- 2. If the market-risk premium doubles (say, from 4% to 8%), the required rate of return for a security: (a) more than doubles (b)exactly doubles (c)increases by less than double (d)decreases