A coworker has reported that someone has engaged in prohibited activity. The supervisor hasasked the technician to quarantine the PC until police arrive. Which of the following should the technician do?（）

• A、Allow the user to continue working
• B、Check for viruses
• C、Re-image the hard drive
• D、Document time/date for later reference
• E、Prevent users from accessing the PC
• F、Turn off PC