A stock has annual returns of 5.4 percent, 12.9 percent, -3.8 percent, and 9.4 percent for the past four years. The arithmetic average of these returns is _____ percent while the geometric average return for the period is _____ percent.

A. 4.57; 4.75

B. 5.98; 5.79

C. 6.33; 6.11

D. 5.98; 6.11

E. 6.33; 6.33