The author's attitude towards the "hacker" phenomenon can be described as ______.

A．The Charm of Computer Science
B．A New Type of Electronic Toys
C．Computer Programming, A Worthwhile Cause
D．Computer Addicts

A．Most of them are top students majoring in computer programming.
B．For them, computer programming is the sole purpose for their life.
C．They can stay with the computer at the center for nearly three days on end.
D．Their "love" for the computer is so deep that they want to be near their machines even when they sleep.