Choose the letter A, B, C or D to complete the passage below

The Internet was born ___(1)___ scientists attempted to connect the American Defence Network to other satellite networks in ___(2)___ to exchange information. Soon, scientific and educational institutions as well as research departments became interested ___(3)___ linking up, and, before long, the Internet had expanded into an international information and communication network.

The Internet now ___(4)___ all the countries in the world. You can be connected to the Internet directly through your own computer or you can hook up to ___(5)___ access system which allows you to use some of the Internet’s services.