[单项选择]American economists once spoofed university education as the only industry in which those who consume its product do not purchase it; those who produce it do not sell it, and those who finance it do not control it. That apt description, made in the 1970s, has been undermined since then by the emergence of the first for-profit universities in the United States. Controlled by entrepreneurs, these schools which number about 700 and counting sell a practical education to career-minded students and make a good buck doing it. They are now expanding abroad, creating the first multinational corporations in a sector long suspicious of balance sheets.
The companies are lured by a booming market in which capitalist competition is still scarce. The number of university students is expected to double in the next 25 years to 170 million worldwide. Demand greatly exceeds supply, because the 1990s saw massive global investment in primary and secondary schools, but not in universities. The number

[单项选择]American economists once spoofed university education as the only industry in which those who consume its product do not purchase it; those who produce it do not sell it, and those who finance it do not control it. That apt description, made in the 1970s, has been undermined since then by the emergence of the first for-profit universities in the United States. Controlled by entrepreneurs, these schools which number about 700 and counting sell a practical education to career-minded students and make a good buck doing it. They are now expanding abroad, creating the first multinational corporations in a sector long suspicious of balance sheets.
The companies are lured by a booming market in which capitalist competition is still scarce. The number of university students is expected to double in the next 25 years to 170 million worldwide. Demand greatly exceeds supply, because the 1990s saw massive global investment in primary and secondary schools, but not in universities. The numbe
A. a profit booster for national universities.
B. a reform booster for national universities.
C. more innovative than national universities.
D. more conservative than national universities.