Write a multi-choice question for the following article: Article: If you go to Hong Kong by air, you will arrive at Kai Tak Airport. Because there was no enough land, it was built out into the sea. It is in the part of Hong Kong called Kowloon. Kowloon is one of the two big cities in Hong Kong. The other city is Hong Kong itself. It is on an island. You can get there by ship or through a tunnel under the sea. Much of Hong Kong is farmland and mountains. The population of Hong Kong is over 6 million. Most of them are Chinese. Chinese and English are spoken by many people there. Clothes, computers, radios and TVs are made in Hong Kong. You can watch dog-racing or motor-racing. Some places are quiet and beautiful. When you are hot and tired, there are small and cool gardens to rest in. There are also a lot of tall buildings to live in. Hong Kong is also a good place for Chinese cooking. You can enjoy many kinds of Chinese cooking, for example, fish, meat and vegetables. Beijing Roast Duck is famous as well. There is certainly a lot to see and to do in Hong Kong. In 1997, Hong Kong was returned to China. It's a part of China.
Question: The main idea of the fourth part is that _ .Options:A dog-racing is interestingB Beijing duck is famousC Chinese food is famousD Hong Kong is a good place for travellingAnswer:D