【正确答案】 C

【答案解析】[听力原文]
   U.S. officials have charged the mother of a young man. It is said that Tonya Couch and her son, Ethan fled to Mexico in November. Ethan Couch was wanted by U.S. officials for violating his punishment, in connection with a drunk-driving crash that killed four people two years ago.
   That crash happened when Couch was 16 years old and drunk. He crashed into a car that was on the side of the road. He was found guilty and sentenced to 10 years under observation.
   Mexico drove out the mother of the young man on Wednesday. She is charged with violating the punishment of her son. In other words, she is charged with helping her son flee to Mexico. If convicted, she could face between two and 10 years in jail.
   The mother and son were arrested on Monday in Puerto Vallarta on Mexico's west coast. U.S. officials located the two when Ethan Couch used one of their phones to order pizza.
   It could be weeks before Ethan Couch is sent back to the United States.
   How old was Ethan Couch when the drunk-driving accident happened?
题目问酒驾事故发生时Ethan Couch的年龄。录音开头提到Ethan(即儿子)与两年前一宗酒驾碰撞事件相关。接着说到“该事件发生时，他才16岁”(That crash happened when Couch was 16 years old)，故C项为答案。A项利用Ethan Couch的缓刑期年数10年这个数字作干扰，并非他发生醉驾事故时的年纪。