Based on the information in the chart below, which of the following is true? Muitiple-Choice U.S. Treasury bills had a zero standard devlation of returns because they are considered to be risk-free. Long-term government bonds had a lower return but a higher standard devlation, on average, than did long-term corporate bonds. Inflation was less volatile than the returns on U.S. Treasury bilis. Long-term government bonds were less volatile than intermediate-term government bonds. The standard deviation of returns for small-company stocks was double that of large-company stocks