A user calls a helpdesk after a pop-up on their Android phone claims 'CRITICAL VIRUS DETECTED - Call 1-800-XXX-XXXX Immediately.' After calling the number, a 'technician' instructs the user to install TeamViewer QuickSupport to allow remote troubleshooting. What threat scenario is this?

• A.A carrier security alert delivered through the emergency broadcast channel, warning the subscriber of an infection the operator detected on the subscriber's handset
• B.A legitimate antivirus product detecting a genuine infection, routing the user to its own support line for guided removal of the sample it found on the device
• C.A Play Protect warning the user has misread, showing a routine scan result rather than a threat
• D.Fake tech support scam using scare-ware pop-up to trick the user into installing a remote access application, giving the attacker full device control