An antivirus programme is a programme that scans your computer or laptop for viruses and other harmful software and removes it. Antivirus software, commonly known as anti-malware software is a computer programme that prevents, detects, and removes malware. Detecting the presence of malicious software by scanning directories or individual files for known dangerous patterns. Antivirus software prevents malware from inflicting damage to your device by identifying, quarantining, and/or destroying malicious code. It often works in the background, scanning PCs, servers, and mobile devices for malware and preventing it from spreading. Antivirus software examines the file by comparing specific parts of code to information in its database and if it detects a pattern that matches one in the database and the file will be quarantined or deleted. Antivirus software nowadays updates itself automatically to provide protection against the latest viruses and malware. Therefore, statements A, B and C are correct. Additional Information antivirus software is designed to protect:Spyware: stealing sensitive informationRansomware: extorting moneyWorms: spreading copies between computersTrojans: promising one thing but delivering anotherAdware: advertisingSpam: spreading unwanted email