Which of the Following Statements About Security Issues on the Internet

Which of the following statements about security issues on the Internet is true?

A) There are no security risks for companies doing business on the Internet.
B) Hackers are not interested in business- to- business transactions.
C) A company's employees are the least likely source of Internet security problems.
D) Firewalls provide adequate security for all Internet exchanges.
E) None of the above are true.