Which of the following statements best characterizes the bottom line of security for e-commerce?

A) Good security is expensive but critical, and it is the responsibility of the customer to ensure that his or her private information is secure.

B) Good security is inexpensive but critical, and it is the responsibility of the customer to ensure that his or her private information is secure.

C) Good security is expensive but critical, and it is the responsibility of the business to ensure that the customer's private information is secure.

D) Good security is inexpensive but critical, and it is the responsibility of the business to ensure that the customer's private information is secure.