Seeking help on my homework for class that i am having issues with. Thank you

Use the information ii)! the questionfs) below Suppose that in the coming year, you expect Exxon Mobil stick to have a volatility of 42% and a beta of 0.9. and Merck's sunk to have a volatility of 24% and a beta of 1.1. The risk free interest rate is 4% and the market's expected return is 12%. The east of capital for a project with the same beta as Merck's stock is closest to: O A. 11.6% 0 B. 12.4% 0 C. 11.2% 0 D. 12.8%