Which of the Following Is the Most Complete and Accurate

Which of the following is the most complete and accurate description of a pure-click company?

A) These are companies that launch a Web site without any previous existence as a firm.
B) These firms' business models are based on advertising revenue.
C) These are established companies that have an online site for selling products.
D) These companies get paid every time a user visits their Web site.
E) These companies sell online space to other Web sites and are paid for the service.