阅读下面的短文，然后根据短文内容选择最佳答案。 Editor : Today our topic is part-time jobs. Are they good for school children or not? Headmaster : Certainly not. Children have got two full-time jobs already: growing up and going to school. Part-time jobs make them so tired that they fall asleep in class. Mrs. Barrens : I agree with you. I know school hours are short, and there's homework too, so children need a lot of sleep. Mr. Barrens : Some students stay at school until they're eighteen of nineteen. A part-time job can't harm them. In fact, it's good for. They earn their pocket-money instead of asking their parents for it. And they see something of the world outside school. Businessman : You're quite right. Boys learn a lot from part-time jobs. And we mustn't forget that some families need the extra money. If the students don't take part-time jobs, they can’t stay at school. Editor : Well, we have got two for and two against. What do our readers think? 1. How many people join the discussion? A. Five B. Four C. Three D. Two 2. Who have the same opinion? A. Mr. and Mrs. Barrens. B. Editor and Mr. Barrens. C. Headmaster and Mrs. Barrens. D. Businessman and Headmaster. 3. Where can you find this kind of discussion? A. In a newspaper. B. At school. C. On the radio. D. In a book.