A During the first decade of the twenty-first century, the phenomenon of social networking on the Internet exploded across the globe…

B Recent statistics show that 75 percent of Internet users around the world use social networking sites… Of all the countries in the world, Italy is apparently the place where social networking is most popular…

C The phenomenon of social networking sites may present unanticipated consequences for people’s lives in the future… Social networking sites allow people to broaden their social reach both personally and professionally…

D On the other hand, concerns are growing… Social networking can actually lead to separation as families and neighbors spend less time together… It is also impossible to know anyone’s true identity online…