GRE Text Completion: Manhatton-GRE填空Manhatton - 0LE18JMXGH180V14=

Chris Anderson, editor of Wired magazine, has always been a huge ____________ of the philosophy that all information "wants to be free"; interesting, then, that his latest book retailed for $29.99, and Wired still charges for subscriptions. A. detractor B. champion C. gadfly D. chump E. critic F. proponent