You need to design a method to encrypt confidential data. Your solution must address the concerns of the chief information officer. What should you do？（）

• A、Encrypt customer information when it is stored and when it is being transmitted
• B、Require encrypted connections to the public Web site， which is hosted on the Web server on the perimeter network
• C、Encrypt all marketing information on file servers and client computers
• D、Require encrypted connections to all file servers