Question 20 ( point) over the past 40 years, stock ABC luas generated an arithmetic average excess return of x per wear and the standard deviation of the stock's annual excess returns during this period 23% per year. Wat is the Sharpe ratio for stock ABC? Round all Intermediate calculations to 6 decimal poindYour final answer should be within 0.01 of the correct answer choice. -0.81 0.39 0.27 0.19