Answer:
b. 5.0%
Explanation:
For this question, we use the Capital Asset Pricing model (CAPM) formula that is shown below:
Expected rate of return = Risk-free rate of return + Beta × (Market rate of return - Risk-free rate of return)
where,
The Market rate of return - Risk-free rate of return) is also known as the market risk premium
So, for stock A, the market risk premium is
10% = 5% + 1.0 × market risk premium
10 - 5% = 1.0 × market risk premium
5% ÷ 1.0 = market risk premium
So, the market risk premium is 5.0%