According to Investment Digest According to Investment Digest(Diversification and the Risk/Reward; Winter 1994 1-3), the mean of the annual return for common stocks from 1926 to 1992 was 16.5%, and the standard deviation of the annual return was 19%. In later parts of the question we will ask: a. What is the probability that the stock return are greater than 0%? b. What is the probability that the stock returns are less than 18%? For this part, answer the following question: Which table will we use to find the area under the normal curve? A. F-table B. Z-table C. K-table D. T-table