Consider a portfolio that consists of the market index SPY and stock ZPY. Assume a weight of 0.3 into SPY and a weight of 0.7 into stock ZPY. Stock ZPY has a beta of 1.2. The market has a standard deviation of 15%, stock ZPY has a standard deviation of 20% and the correlation between SPY and ZPY is 0.9. The current risk-free rate equals 1% and the expected retum on the market portfolio is 8%. The Sharpe-ratio of the portfolio where you invested 0.3 into SPY and 0.7 into ZPY is closest to:

A 0.44

B 0.39

C 0.54

D 0.49