Antivirus Software and Options

Antivirus software is a program designed to detect, prevent, and remove malware (viruses, worms, Trojans, etc.) from a computer or network. It is an essential tool for protecting computer systems from cyber-attacks. Here are the options given in the question:

a) Linux

Linux is not an antivirus software. It is an operating system similar to Microsoft Windows and macOS. However, being an open-source platform, it is less susceptible to malware attacks.

b) Kaspersky

Kaspersky is a popular antivirus software developed by Kaspersky Lab. It offers real-time protection against malware, viruses, spyware, and other cyber threats.

c) Norton

Norton is another well-known antivirus software developed by NortonLifeLock. It provides comprehensive protection against viruses, spyware, malware, and other online threats.

d) Avast

Avast is a free and widely used antivirus software that offers real-time protection against viruses, malware, and other cyber threats.

Conclusion

In conclusion, the correct answer is option 'A' - Linux. Linux is not an antivirus software but an operating system. The other options, Kaspersky, Norton, and Avast, are all popular antivirus software programs that offer protection against various types of malware and cyber threats.

Linux