Assume That for a 10-Year Period Inflation Averaged 2

Assume that for a 10-year period inflation averaged 2.8 percent,U.S.Treasury bills returned 3.3 percent,and long-term corporate bonds earned 5.9 percent.What was the real rate of return on long-term corporate bonds for the period?

A) 2.8%
B) 3.1%
C) 9.5%
D) 9.9%
E) -.2%