Which answer describes the calculations that could be used to solve this problem?

Juan bought 8 tickets for the movie theater. Each ticket cost $9. He gave the cashier $80. How much change would Juan get?

A.
Multiply 8 × $9. Then subtract the product from $80.

B.
Divide $80 ÷ 8. Then add $9 to the quotient.

C.
Add $9 + 8. Then subtract the sum from $80.

D.
Multiply $80 × 9. Then add $8 to the product.