Every Time a User Manually Runs an Antivirus Scan, the Workstation

Multiple Choice

Every time a user manually runs an antivirus scan, the workstation becomes unresponsive, and the user has to reboot. A technician is dispatched and sees an antivirus pop-up in the system tray, indicating the computer is severely damaged, and a "click here" button to resolve it. There is a timer in the pop-up, counting down the time until the computer is no longer usable. Which of the following should the technician do NEXT?

A) Research the pop-up to see if it is a legitimate malware solution.
B) Click on the pop-up window to resolve the issue before the time runs out.
C) Send an email to all staff members warning them of malware on their system.
D) Disconnect the Ethernet cable from the workstation and disable WiFi.