What idea does the author want to convey in the second paragraph?

A、The rapid development of information technology has taken businessmen by surprise.;
B、 Information technology has removed the restrictions of time and space in business transactions.;
C、The Internet, intranets, e-mail, and portable computers have penetrated every corner of the world.;
D、The way we do business today has brought about startling breakthroughs in information technology.