A、Because many students are cheating in exam. B、Because they have the access to smart phones. C、Because the pressure from their

Teachers have always had to deal with cheating students. [16] But in today’s high-tech world, new devices are making it much easier for students to cheat. Recent studies have shown that most teenagers in the United States now have access to smart phones. Experts say much of the cheating is done with the help of smart phones. Nile Nickel is a technology and social media expert. He says many students put information into their mobile phones to cheat on tests. They can then hide their cheating by using other devices to view the information. This May 8, 2016 photo by Asst. Prof. Pakarat Jumpanoi shows a smart watch used by students caught cheating in exams for admission to medical school in Bangkok, Thailand. He added that some students even have smart watches that only show information if they are viewed with special glasses. Some phones also have a very low ring sound that can only be heard by younger people, according to Nickel.
Denise Pope is a learning expert at Stanford University in California. She said some of the students are not the ones you think would cheat. [17] These are kids who are doing well in school, and they are still cheating because they need to keep up their grades. They feel the pressure to maintain a really high grade point average. She says improving the learning and testing process can help cut down on cheating. Pope added that changing the way tests are structured can prevent cheating. The best tests require students to write their answers instead of choosing from a list of choices. [18] One of the most important ways to help stop cheating is to get teachers, students and parents to talk openly about it. She says this can help students better understand the reasons for holding themselves to a high standard of honesty.
Questions 16 to 18 are based on the recording you have just heard.
16.What is the relationship between new devices and cheating?
17.Why are those students who are doing well in school still cheating?
18.What is one of the important ways to help stop cheating?