听力原文：Graffiti is drawing or writing often found in a wall in public places, These draw

听力原文： Graffiti is drawing or writing often found in a wall in public places, These drawings and writings are usually rude, humorous, or political. The words "graffiti" comes from an Italian word meaning address. Graffiti provides a record of the past because people have written on wails for centuries. Cave drawings are the earliest examples we have of the art of graffiti.

Writing on wails is a way to comment on the world we live in. Women's liberation groups in Britain, for example, have used graffiti to show their anger at the sex discrimination of many advertisements where women's bodies are used to sell goods.

Yesterday's graffiti can be today's foreign attraction. When the Berlin wall came down in 1989, people found that it was covered with graffiti from all over the world. Graves of famous people, like rock-star Jim Morrison, are covered with written messages from fans.

Graffiti is also a popular art form. Graffiti pictures have gained respect in artistic circles. Today, graffiti is likely to be found hanging inside modem New York apartments as well as in downtown streets. In New York, graffiti pictures have been sold for hundreds or thousands of dollars. Graffiti artists have been paid to use their art to brighten up dull environments.

But graffiti can bring us trouble. Scenes of natural beauty and important landmarks have been spoiled by mindless graffiti. The London underground authority has spent about 2 million pounds a year on removing graffiti from trains and stations. If you are caught doing it, you can be sent to prison. In Britain, the maximum sentence for this type of crime is ten years.

Whether you think graffiti is mindless violence against property, or a living art form, its popularity suggests that it is here to stay.

What do women's liberation groups in Britain do with graffiti？

A．Rally support for their movement.

B．Liberate women from tedious housework.

C．Claim their rights to equal job opportunities.

D．Express their anger against sex discrimination.