Over the past 15 years, the common stock of The Flower Shoppe has produced an arithmetic average return of 13.1 percent and a geometric average return of 12.8 percent. What is the projected return on this stock for the next five years according to Blume's formula?
A) 11.70 percent
B) 11.89 percent
C) 13.01 percent
D) 12.03 percent
E) 12.12 percent