Companycom informs the system administrator that there is concern about the Electronic Service Agent and security. What can be said about Electronic Service Agent that will address concerns about security?（）

• A、All Service Agent transactions are inbound requests secured by encryption (cryptographic processor card) Kerberos, and Hypertext Transfer Protocol Secure (HTTPS). 
• B、The AT&T Global Network Services (AGNS ) phone connection generates system IDs and passwords for the client every six months. Service Agent has no inbound capability.
• C、All Service Agent transactions are outbound requests secured by encryption (Hypertext Transfer Protocol Secure (HTTPS) or POST). Service Agent has no inbound capability. 
• D、The transmissions from Service Agent can be either by Internet or the AT&T Global Network Services (AGNS) phone connection. Service Agent transactions are inbound requests generated by a point to point connection.