Read the following text and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions. What is the main topic of the forum discussion?

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Read the following text and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions.

What is the main topic of the forum discussion?

Several benefits of social media for teenagers.

Some effects of electronic devices on teens.

Different ways to improve computer skills.

Different ways to contact friends and family members.

Giải thích

B. Some effects of electronic devices on teens.