单选题
Which of the following is true about Olson?
A、
He was a fiction writer.
B、
He edited the book Power and Prosperity.
C、
He taught economics at the University of Maryland.
D、
He was against the ownership of private property.
【正确答案】
C
【答案解析】
第一段最后一句Olson was an economics professor at the University of Maryland until his death in 1998．Olson一直在马里兰大学任经济学教授直至1998年去世，所以选C。
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