10. Assume the broad equity market rose by a total of 40% over the past three years. Further assume you employed leverage during this period, borrowing another $50 for every $100 of your own capital, and generating a total return of 60% over the same three years after subtracting interest costs. If both the broad equity market and your portfolio on an unlevered basis exhibited annualized volatility of 20% during this period and the risk free rate was 5% p.a., the Sharpe ratio of your portfolio was closest to:

A. .35

B. .40

C. .50

D. .75