Read the passage carefully and choose the correct answer.

 You can't buy a drawing by Julian Beever and you can’t see his work in a gallery or museum. Julian makes his amazing pictures on the pavements of city streets. People have called him “the Pavement Picasso” and perhaps you can see his pictures on the Internet. Julian has made hundreds of pieces of “pavement art” in different countries - in many parts of Europe and also in the USA, Australia, Japan, Argentina, and Brazil. His drawings can take three or four days to finish. But because he draws with chalk, the drawings only stay for a short time. When people walk on them or when it rains, they quickly disappear. For Julian, this isn’t a problem. The drawings survive in the photos he has taken, and this is the most important thing for him. Julian’s fame hasn’t come from experts in the art world, but from the Internet. “The reason why my work has become well known is because people like it and they’ve sent it to each other on the Internet. he says. “So I know that what I do is popular.” Julian Beever is from Leicestershire in England, but he now lives in Belgium.

Lots of people know Julian’s art because____