please answer quickly!

Sanaponic, Inc. will pay a dividend of $6 for each of the next 3 years, $8 for each of the years 4-7, and $10 for the years 8-10. Thereafter, starting in year 11, the company wil pay a constant dividend of $5 lyear forever. If you require 12 percent rate of return on investments in this risk class, how much is this stock worth to you? A. $41.46 B. $45.68 C. $34.54 D. 550.50 E. $55.99 F. $37.77