题目:
A store currently charges the same price for each towel that it sells. If the current price of each towel were to be increased by $1, 10 fewer of the towels could be bought for $120, excluding sales tax. What is the current price of each towel?
选项:
A、$1
B、$2
C、$3
D、$4
E、$12
答案:
C