The correct answer is: B. Software
A computer virus is a type of malicious software that, when executed, replicates itself by modifying other computer programs and inserting its own code. It can spread from one computer to another through infected files, email attachments, or links on websites.
A computer virus is not a hardware device, such as a hard drive or a printer. It is also not a living organism, such as a bacteria or a virus. And it is not a type of freeware, which is software that is available for use without charge.
Computer viruses can cause a variety of problems, including data loss, system crashes, and identity theft. They can also be used to steal personal information, such as passwords and credit card numbers.
To protect your computer from viruses, it is important to install antivirus software and keep it up to date. You should also be careful about the files you open and the links you click on.