Read the text and, through skimming strategy, choose the best alternative that describes the main topic of the text.

Many people in the world need to study English. In fact, many schools have different courses for different people and reasons. Some prefer to have conversations classes, but other people prefer to have classes about grammar. Of course, engineers, technicians, doctors, accountants, computer programmers, managers, supervisors, controllers and other people really have contact with this universal language and need to understand texts and many other things in English.