Most British telephone cards are just plain green,but card collecting is becoming a popular hobby in Britain and collectors even have their own magazine,International Telephone Cards. One reason for their interest is that cards from around the world come in a wide variety of different and often very attractive designs. There are 100,000 different cards in Japan alone,and there you can put your own design onto a blank card simply by using a photograph or a business card.
The first telephone cards,produced in 1976,were Italian. Five years later the first British card appeared,and now you can buy cards in more than a hundred countries.People usually start collecting cards because they are attractive,small and light,and they do not need much space. It is also a cheap hobby for beginners,although for some people it becomes a serious business. In Paris,for example,there is a market where you can buy only telephone cards,and some French cards cost up to 4,000 pounds.The first Japanese card has a value of about 28,000 pounds. Most people only see cards with prices like these in their collectors'magazine.
2. The writer mentions a market in Paris in order to show that _.
A card collecting is popular among young people
B French and Japanese cards are the most valuable
C people can make money out of card collecting
D card collectors magazines are very useful
