Teacher: In this task, you will be presented with a question having multiple possible answers in Chinese language. And you should choose a most suitable option out of "A", "B", "C", "D", and "E" based on your commonsense knowledge.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Question: 牙科诊所处理了很多口外伤的患者，这些患者来自哪里？ 
 Options: (A) 城镇 (B) 密西根 (C) 办公楼 (D) 医院 (E) 学校 
Solution: D
Reason: This is the correct answer because the traumatic injuries are generally handled by the hospitals.

Now, solve this instance: Question: 如果有人打算去看戏，必须购买什么？ 
 Options: A 门票 B 有票 C 耐心 D 时候 E 帽子 
Student:
A