Well, you should focus on the main points. Try to brainstorm what you know and pick the strongest subjects with the most evidence.
Here are examples of a few. In your intro, only use about 3 or 4 that you will actually have time to talk about in your essay, though.
-Increased anxiety
-Triggers eating disorders
-Cyber bullying
-Spending more time on phones causes eyesight impairment
-Promotes consumerism
C
you don't need to know how I know.
The option is (D).
It is obvious the first question would be what is the text about,what does the author try to convey and how does he presents the facts to manage his goals.