Read the following passage, then choose the item (A, B, C or D)that best answer each of the question about it

Every four years people all over the world watch the Olympic Games. It is a time for all kinds of people to unite in peace. Some of them join together to compete for gold medals. Millions of other people watch them on television. Why do we have the Olympic? How did they begin?The first Olympic Games were in Greecein 776 B.C. There was only one event. People ran a nice the length of the stadium. The Games lasted one day. Slowly people added more events. The Games were only for men, and women could not even watch them. Only Greeks competed. They came from all parts of the Greek world. The time of the Games way; a time of peace, and government let everyone travel safely. The winners became national heroes.The first modem Games were in 1896 inAthens. The Greeks built a new stadium for the competition. Athletes from several countries competed. Then there were Olympics every four years in different cities in Europe and theUnited Statesuntil 1952. After that they were in Melbourne, Tokyo, Mexico City, and Montreal besides in European cities. Each year there were athletes from more nations. The first Winter Olympics were in 1924. The athletes compete in skiing and other winter sports.

How often do people all over the world watch the Olympic Games?