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The yearly returns for Australian Listed Property are provided below: Period Return 1 -0.7% 2 -1.6% 3 32.8% 4 7.3% 5 26.8% Assuming the risk-free rate is 3% p.a., what is the Sharpe Ratio for the return series provided (rounded to two decimal places)? Select one: a. 0.62 b. 0.67 C. 0.69 d. 0.72 e. None of the above