Yonan Corporation's Stock Had a Required Return of 11

Multiple Choice

Yonan Corporation's stock had a required return of 11.50% last year,when the risk-free rate was 5.50% and the market risk premium was 4.75%.Now suppose there is a shift in investor risk aversion,and the market risk premium increases by 2%.The risk-free rate and Yonan's beta remain unchanged.What is Yonan's new required return? (Hint: First calculate the beta,then find the required return.)

A) 14.03%
B) 14.38%
C) 14.74%
D) 15.10%