单项选择题

W: I’ d like two tickets, please. One for myself and one for my little boy. He’ s eight years old.
M: If he’ s only eight, he can get in for half price. That will be a dollar fifty together.

How much does the woman’ s ticket cost()

A. Fifty cents.
B. Eighty cents.
C. One dollar.
D. Seventy-five cents.