Jason purchased a pack of game cards that was on sale for 13% off. The sales tax in his county is 8%. Let y represent the original price of the cards. Write an expression that can be used to determine the final cost of the cards.
A. y - 0.13y
B. 1.08 (0.87y)
C. 0.08 (0.87y)
D. y - 0.87y + 0.08y