Write a multi-choice question for the following article: Article: Visiting Jiaixng Zoo Come and see big elephants from Yunnan and tigers from the northeast. The Africa giraffe are waiting for you. Clever monkeys are going to make you laugh. A lot of other animals you have never seen are waiting to meet you. Tickets: Grown-ups : Y=5.00 Children: Y=2.00 Under six: Free Opening time: From Monday to Friday: 9:00 am - 4:00 pm Saturday and Sunday: 8:00 am - 5:30 pm Keep the zoo clean. Do not give food to or go near the animals.
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Question: Now Mr and Mrs Green are going to the zoo with their five-year-old son. How much will they pay for the tickets?Options:A Six yuanB Ten yuanC Twelve yuanD Fifteen yuanAnswer:B