Which of the following can be inferred from the passage?

Câu hỏi: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 44 to 50.
As part of a project called ‘The Social Experiment’, more than 600 students at Shoreline High School gave up texting, email, and networking sites for a week free of social media. Under the rules, students could call each other on their phones, which many of them had never done before the experiment began. The idea started with Trent Mitchell, a video-production teacher at the school. He wondered whether his students, who often walked into class heads down, typing away on their phones, could cut themselves off from social media. Mitchell thought his students wouldn't be able to tear themselves away. When he asked them, half the students said they could do it; the other half thought it was the worst idea they'd ever
heard.
Mitchell and a colleague from another school, Marty Ballew, created The Social Experiment. The theme was 'What was life like in 1995?' Students documented the process through video interviews with students and staff, some of whom also volunteered to cut themselves off. Some students went to extremes to make sure they didn’t break the rules. Five students handed over their cell phones to Ballew. One girl gave him her Facebook password and asked him to change it for the week to help her avoid temptation. Cole Sweeten found it tough. He deleted texts as they came in, but found it hard to remember not to answer text messages. On the second day, he heard the familiar buzz and grabbed his phone, ready to hit the button to read the new text message, when he remembered. 'No!' he shouted, and dropped the phone
to the floor.
Last year, El ZeinIt was sending or receiving 200 texts per day, or about 6,000 per month. It was too much for her parents, who confiscated her phone for a week. This year, she said, she has averaged 20 to 50 a day, until the experiment week, that is. It was 'weird' not checking her email, texts and social network sites as soon as she woke. But each day got easier.
Ed Wytovicz did chores during his free time, an idea that sounds like it came from his parents, but he claims he wanted to do it. He also figured out activities such as practising basketball are better distractions than ones that take 10 or 15 minutes. ‘You had to do something that filled time in large segments,’ he says.
Which of the following can be inferred from the passage?
A. Ed Wytovicz’s parents encouraged him to do some household chores.
B. Cole Sweeten ultimately couldn’t resist the urge to use his phone.
C. El ZeinIt had spent lots of her time with her phone before the experiment.
D. Trent Mitchell and Marty Ballew were both addicted to social media.