Given the question: Write a multi-choice question for the following article: Article: People are talking about the "new economy." It's very different from the "old economy". In the old economy, people travel to walk. They buy things in stores. They use the post office, the fax and the telephone to send information. They see people face-to-face at their jobs or in stores. People get information from newspapers, radio, television, books and libraries. In the new economy, people do business through the "net," which is a connection of millions of computers everywhere in the world. In the new economy, workers often work at home. They can get information online. They can communicate with employers and co-workers by e-mail. Businesses have "virtual stores". They are websites on which customers can see the products. Businesses can sell to customers anywhere in the world. In the new economy, people live a fast paced, convenient and colorful life. The whole world develops more quickly than before. But the new economy is a double-edge sword. Its disadvantage is also obvious. For example, the Internet has led to a huge increase in credit card cheating. Some illegal websites offer some cheap or banned goods or services. Online shoppers who enter their credit card information may never receive the goods they want to buy and their card information could even be for sale in an illegal website. So people in the new economy should be smarter and knowledgeable.
The answer is:
Question: "But the new economy is a double-edge sword " in the last passage means _ .Options:A The new economy is as sharp as a swordB The new economy has advantages and disadvantagesC The new economy is better than the old economyD Both the new economy and the old economy have disadvantagesAnswer:B