来年の共テ英語、地味にヤバい

You are working on an essay about whether high school students should be allowed to use their smartphones in class. You will follow the steps below.

Step 1: Read and understand various viewpoints about smartphone use.
Step 2: Take a position on high school students’ use of their smartphones in class.
Step 3: Create an outline for an essay using additional sources.

Outline of your essay:
Using smartphones in class is not a good idea
[Introduction]
Smartphones have become essential for modern life, but students should be prohibited from using their phones during class.
[Body]
Reason 1: [From Step 2]
Reason 2: [Based on Source A] … (6)
Reason 3: [Based on Source B] … (7)
[Conclusion]
High schools should not allow students to use their smartphones in class.

Source A:
Mobile devices offer advantages for learning. For example, one study showed that university students learned psychology better when using their interactive mobile apps compared with their digital textbooks. Although the information was the same, extra features in the apps, such as 3D images, enhanced students’ learning. It is important to note, however, that digital devices are not all equally effective. Another study found that students understand content better using their laptop computers rather than their smartphones because of the larger screen size. Schools must select the type of digital device that will maximize students’ learning, and there is a strong argument for schools to provide computers or tablets rather than to have students use their smartphones. If all students are provided with computers or tablets with the same apps installed, there will be fewer technical problems and it will be easier for teachers to conduct class. This also enables students without their own smartphones to participate in all class activities.

Source B:
A study conducted in the U.S. found that numerous teenagers are addicted to their smartphones. The study surveyed about 1,000 students between the ages of 13 and 18. The graph below shows the percentages of students who agreed with the statements about their smartphone use.

[Survey Results of Teenagers’ Smartphone Use]
I spend too much time on my phone. … 72%
I check my phone right after waking up. … 54%
I often feel anxious without my phone. … 45%
I often feel regret using my phone too much. … 27%

問4 Based on Source A, which of the following is the most appropriate for Reason 2? (6)
�@ Apps that display 3D images are essential for learning, but not all students have these apps on their smartphones.
�A Certain kinds of digital devices can enhance educational effectiveness, but smartphones are not the best.
�B Students should obtain digital skills not only on smartphones but also on other devices to prepare for university.
�C We should stick to textbooks because psychology studies have not shown the positive effects of digital devices on learning.

問5 For Reason 3, you have decided to write, “Young students are facing the danger of smartphone addiction.” Based on Source B, which option best supports this statement? (7)
�@ Although more than half of teenagers reported using their smartphones too much, less than a quarter actually feel regret about it. This may indicate unawareness of a dependency problem.
�A Close to three in four teenagers spend too much time on their phones. In fact, over 50% check their phones immediately after waking. Many teenagers cannot resist using their phones.
�B Over 70% of teenagers think they spend too much time on their phones, and more than half feel anxious without them. This kind of dependence can negatively impact their daily lives.
�C Teenagers are always using smartphones. In fact, more than three-quarters admit to using their phones too much. Their lives are controlled by smartphones from morning to night.

とりあえず問一は�@が正解でいいか？