Which of the Following Statements About E-Procurement Security Issues Is

Which of the following statements about E-procurement security issues is true?

A) There are no security risks for companies doing business on the Internet.
B) Firewalls provide adequate security for all Internet exchanges.
C) Hackers are not interested in many business-to-business transactions.
D) Extranet users and Internet users face the same security risks and use the same security tools.
E) Providing E-procurement security can involve a company spending millions.