Given the following historical average returns on different US investments, tell me the historical risk premium on US long-term government bonds. A. 1.1% B. 2.1% C. 2.2% D. 5.1% E. 6.0% F. 6.1% G. 6.5% H. 6.8% I. 7.5% J. 8.2% K. 8.9% L. No, none of the above is correct