A ticket to a school play costs x dollars, where x is a whole number. A group of 9^{\text {th }} graders buys tickets costing a total of \$ 48, and a group of 10^{\text {th }} graders buys tickets costing a total of \$ 64. How many values for x are possible?

**Answer Choices**

A. 1

B. 2

C. 3

D. 4

E. 5