A、10 years old. B、13 years old. C、16 years old. D、17 years old. C根据选项可以判断问的是年龄，而且四个选项的年龄相对较小，题目可能跟青少年有关。听音时留意新闻中的相关信息。题目问酒驾事故发生时

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.
    5. How old was Ethan Couch when the drunk-driving accident happened?
    6. Why was Tonya Couch charged by the U.S. officials?
    7. Where were Tonya and Ethan arrested by the U.S. officials?