The word they in paragraph 4 refers to .

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions from 34 to 40.

When I saw her name on the screen, it took me right back to the moment she had moved away with her family ten years before. We had been such close friends at primary school. To begin with, she and I had not hit it off, perhaps because we were both timid. We had quickly got over that, though, and as time went on, we had become really good friends, until you almost never saw one of us without the other.
And now after so much time apart, this was her name. She had sent me a friend request. I knew she had been living abroad, and her profile picture showed her on the beach. I had been expecting her to look different after ten years. The girl in the photo was the same old Lauren. Though.
Nowadays, it is easy to find old friends thanks to social networking sites. There are lots of stories about long lost friends getting back in touch after ten years apart. It was odd because I had been thinking about our friendship too and now here she was.
She told me about the place where she had been living for the past ten years, and I told her about things that had happened to me. Before long, the years melted away and we were the same two girls who had spent so much time together. Of course, true friends are loyal and listen to you when you are down. And they are the people you have fun with. But deep down, I realised that the truest friends are those you are most yourself with. And that is something that never changes. That is what Lauren and I learned that day, the day we realised our friendship was so precious and had never really ended in the first place.
(Adapted from Optimise)