John, a 10-year-old boy, wants to watch a movie with his parent. According to the following table, they'll spend               if they buy tickets on Children's Day (Monday).

The ticket for Secret of the Dragon
	Weekdays	Weekends
Adult ticket	$ 7.00	$8.00
Child ticket	Under 15 years old: half (10% off on Children 's Day).

A、$ 17.15

B、$ 11.15

C、$ 10.15