The author is critical mainly of ______.

A．the technology prevents composers from contacting their listeners.
B．no great music has yet been created through computer technology.
C．famous composers refuse to use the new technology to make music.
D．computer is not a terrific instrument for making musical works.

A．makes it possible for anyone to write music.
B．is only available in expensive recording studios.
C．requires high- end computers and programming skills.
D．provides cheap, powerful ways of making music.