
Passage: A report shows that the mainland Chinese buyers became the second largest group of foreign buyers of properties in the United States in the year to March, with a transaction value of $9 billion, second only to Canada.This is 23 percent higher than last year's transaction volume of $7.3 billion and 88 percent higher than the $4.8 billion the year before last. On this basis, some people think that more and more rich people in China are transferring their property abroad.
Question: Which of the followings, if true, can best refute the above argument?
A. A.Many Chinese buy houses in preparation for their children to study in the United States in the future.
B. B.Although the turnover has increased by 23%, the turnover of Chinese buyers has not increased this year.
C. C.Among the rich in China, there are groups that speculate in real estate. They have speculated in Beijing, Shanghai and other places.
D. D.In recent years, the risk of American real estate market is small, and it has a certain function of maintaining and increasing value.
Answer: