Certkiller .com has organizational units in the Active Directory domain. There are 10 servers in the organizational unit called Security. As an administrator at Certkiller .com， you generate a Group Policy Object （GPO） and link it to the Security organizational unit. What should you do to monitor the network connections to the servers in Security organizational unit（）

• A、Start the Audit Object Access option
• B、Start the Audit System Events option
• C、Start the Audit Logon Events option
• D、Start the Audit process tracking option
• E、All of the above