Which of the following is a technical description of a virus?

Group of answer choices

It is a piece of code that causes a computer to behave in an unexpected and usually undesirable manner.

It is a harmful program that involves the use of Short Message Service to get personal details from victims.

It is the act of fraudulently using email to try to get the recipient to reveal personal data.

It is the abuse of email systems to send unsolicited email to large numbers of people.