Read the passage and check your understanding by doing the multiple choice exercises.People's Love to Communicate Never ChangesIn the past, it was a small stamp that helped family members and friends to keep in touch with each other. With the coming of the telephone, people could not only read words, but also hear each other's voices. Later, the rise of the Internet joins people in different places with instant communication software which gives people even more ways to communicate.Most young people want to enjoy the warm love from their family and friends, but not too much control from them. They want to follow the time closely, but they also long for peace of mind. The new ways of communication make this possible. Often, they only need a simple "Hello" to change yesterday's strangers into today's friends. And they can also keep silent in WeChat Moments.There are pros and cons in this change. Some people may worry about their privacy. Some parents may worry about their children's WeChat Moments which are much larger and different from their own! However, the new ways of communication could give them freedom and chance to make smart choices. Parents can also have a try themselves!(1)单选题What helped people to keep in touch in the past?A. Telephone calls.B. The Internet.C. A small stamp.D. Instant messaging