WHAT IS THE BEST TITLE FOR THE PASSAGE

7. What is the best title for the passage?A. What does the family mean to teenagers?B. How can parents help children in difficulty?C. What should teenagers do to be happy?D. When do children really need the family?Read the following passage and mark the letter A, B, C or D to indicate the correctanswer to each of the questions.You might be surprised to know that bicycles have existed for less than two hundredyears. Though the earliest comes from a sketch said to be from 1534 and attributed to GianGiacomo, there are several early but unverified claims for the invention of the modernbicycle. No one is sure who invented this popular two-wheeled machine, but it was probablyeither the German Karl von Drais, in 1817, or the American W K Clarkson, in 1819.The early models didn't look much like the bicycles of today. The front wheel wasmuch bigger than the back one, and also there weren't any pedals — riders had to movethemselves forward by pushing their feet against the ground. Pedals finally arrived in the1840s, and in 1879 an Englishman named Henry Lawson had the idea of connecting them tothe back wheel with a chain. Gears, which made things much easier for those cycling uphill,first appeared in the 1890s.There are now approximately one billion bicycles in the world — more than twice thetotal number of cars – and they are the main form of transport in some developing countries.They have to compete with cars on the streets of all the world’s cities and two forms oftransport don’t always mix well. In London in 2005, for example, over 300 cyclists wereeither killed or seriously injured in accidents involving cars. Even though bicycles are muchmore environmentally friendly than cars, most governments don't do much to encouragepeople to ride rather than drive. In China, which is famous for having a huge number ofbicycles (about 200 million), the authorities in the city of Shanghai even banned cycling fora while in 2003.Cycling is on the rise in the United Kingdom, and the number of annual journeysmade by bike in London has increased 50% over the last five years. Experts say there is amixture of reasons for this boom: concerns about the environment, the desire to keep fit, andalso the fact that cycling is often not only cheaper but also quicker than travelling by car.However, although one in three British adults owns a bicycle, they still don't use themnearly as much as they could. Bikes are used for a mere 2% of journeys in the UK, while thefigure for the Netherlands is an impressive 27%.Cycling is becoming more popular as a competitive sport, and the most famous raceis of course the three-week Tour de France, which takes place every July. American LanceArmstrong won it every year from 1999 to 2005 --one of the greatest individual sportingachievements of all time.(adapted from Handouts for B2, University of Linguistics and International Studies,