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.