What will be the nominal rate of return on a perpetual preferred stock with a $100 par value, a stated dividend of 8% of par, and a current market price of (a) $67.00, (b) $78.00, (c) $97.00, and (d) $139.00? Round your answers to two decimal places.

A. ______%

B. ______%

C. ______%

D. ______%