Use the data in the tables below to answer the following questions: average rates of return on treasury bills, government bonds, and common stocks, 1900–2013.portfolio average annualrate of return average premium (extra returnversus treasury bills)treasury bills 3.9 treasury bonds 5.2 1.3common stocks 11.5 7.6standard deviation of returns, 1900–2013.portfolio standard deviation, %treasury bills 2.8long-term government bonds 8.9common stocks 19.9a) what was the average rate of return on large u. s. common stocks from 1900 to 2013? (enter your answer as a percent rounded to 1 decimal place.)average rate of return %b) what was the average risk premium on common stocks? (enter your answer as a percent rounded to 1 decimal place.)average risk premium %c) what was the standard deviation of returns on common stocks? (enter your answer as a percent rounded to 1 decimal place.)standard deviation of returns %