A、The psychological dependence on high-tech devices. B、The psychological dependence on the Internet. C、The fear of being out of

W: Nomophobia is a term we come across so frequently nowadays. It’s a mix of no-mobile-phobia.
M: Yes. Nomophobia means the fear of not having your smartphone or being connected with others through it. Though the devices are a relatively recent invention, an increasing number of people seemed to have developed a psychological dependence on them and that’s getting researchers’ attention.
W: It’s been 10 years since the iPhone made its first appearance, and it’s hard to imagine a world without the smartphone.
M: True. We use our smartphones to work, entertain, organize, do hundreds of daily tasks, even find love.
W: We might jokingly say that we are addicted to our smartphones, but more and more researchers are starting to agree.
M: There’s no widely adopted diagnosis of smartphone addiction, but for some doctors not having an official diagnosis doesn’t mean it isn’t real.
W: I’m still amazed at how many people do dismiss it as a silly idea— even plenty of people in my own field. For those who specialized in technology addictions, what goes on inside your head looks similarly to what goes on inside your head when you’re dealing with other addictions.
M: What do you mean by that?
W: The regions of the brain that light up when engaged in your smartphone, those are the same regions of the brain that are engaged when you’re using those drugs and alcohol.
M: I guess it also affects your behaviour.
W: Sure. When you’re triggered by burden, you’re using it as the avoidance of sleep. You’re using it to increase your mood when you’re feeling a little down, or you’re using it to avoid social situations when you walk into a party.
M: Can we self-diagnose whether we are addicted to phones or not?
W: Unfortunately, we can’t. And it takes a trained professional to tell you if you’re addicted to your phone. Self-diagnosing won’t work. That’s because we were terrible at estimating how much time we actually spend online.
Questions 5 to 8 are based on the conversation you have just heard.
5. What does Nomophobia mean?
6. What do some doctors say about smartphone addiction?
7. What does the woman want to say by comparing smartphone addiction to other addictions?
8. Why can’t we self-diagnose whether we are addicted to phones?