An inventor can generally make a big profit if he _________ his or her invention.

A．the future television will have advanced transmission techniques
B．there will be more types of television
C．the future television will be more entertaining
D．the future television will be more interactive

A．all the ideas "new" to us are actually old
B．some "new" ideas can make money without having to be commercialized
C．all "new" ideas first appeared in the form of a patent
D．some "new" ideas may not bring economic reward to their originators