problem: The publishing corporation is currently selling 8,000 copies of textbook per edition but management feels, sales could be increased by 1,000 books if the selling value per book was decreased by $1.00 per copy. Implementing such a policy should result in:

Select one answer; 

[A] an increase in total contribution margin of $5,150.   

[B] a decrease in total contribution margin of $4,150.   

[C] a decrease in total contribution margin of $3,850.   

[D] an increase in total contribution margin of $4,850.