Which of the following statements is true?

Which of the following statements is true?
A) The expected return and standard deviation of return are greater for common stock than for U.S. Treasury bills.
B) The expected return on common stocks is greater than the expected return on U.S Treasury bills, but the standard deviation of return for common stocks is less than the standard deviation of return for U.S. Treasury bills
C) The expected return on common stocks is less than the expected return on U.S Treasury bills, but the standard deviation of return for common stocks is greater than the standard deviation of return for U.S. Treasury bills.
D) The expected return and standard deviation of return are less for common stocks than for U.S. Treasury bills.