You are designing an authentication solution to meet the security needs of the network administrators. You install an enterprise certification authority (CA). Which three additional actions should you take?（）

• A、Enroll each administrative account for a smart card authentication certificate.
• B、Configure autoenrollment for computer authentication certificates. 
• C、Install a smart card reader on each server computer.  
• D、Install a smart card reader on each network administrator’s computer.  
• E、Configure each administrative account to require a smart card for interactive logon.
• F、Configure the Default Domain Policy GPO to require smart cards for interactive login.