Use the data in the tables below to answer the following questions: Average rates of return on Treasury bills, government bonds, and common stocks, 1900-2017. Standard deviation of returns, 19002017. a. What was the average rate of return on large U.S. common stocks from 1900 to 2017? b. What was the average risk premium on large stocks? c. What was the standard deviation of returns on common stocks? (Enter your answer as a percent rounded to 1 decimal place.)