Consider the Treynor-Black Model

Multiple Choice

Consider the Treynor-Black model.The alpha of an active portfolio is 3%.The expected return on the market index is 18%.The standard deviation of the return on the market portfolio is 25%.The nonsystematic standard deviation of the active portfolio is 15%.The risk-free rate of return is 6%.The beta of the active portfolio is 1.2.The optimal proportion to invest in the active portfolio is

A) 50.0%.
B) 69.4%.
C) 72.3%.
D) 80.6%.