[简答题]Although many cities have achieved a financial profit by hosting the Games, the Olympics can be financially risky.

There are stock markets in large cities in many countries. Stock markets in Pads, London, Tokyo, Shanghai and New York are among the largest and most well-known. The stock market, also called stock exchange, is a place where people can buy or sell shares of a factory or a Company. And each share means certain ownership of a factory or a company.
Different people go to stock markets. Some are rich, who want to get more money than they have. Others are not rich, who buy stocks and try to become rich. Still others buy stocks as part of their plan to save money. Of course, investing money in the stock market is not the safest way to make money. No one can tell exactly whether the shares will be doing well. The factory or the company may do badly. Then the stocks will go down, and investors will lose money. The stock may go up or down for a number of untold reasons. Everyone wants the stock to go up, but sometimes even if a factory or company does a good job, the stock may sti
A. Some rich people go to stock market.
B. All the people who want to get more money go to stock market.
C. Some people who are not rich go to stock market.
D. Some people who want to save money go to stock market.