Which of the following terms is used to describe a program that copies itself repeatedly, using up resources and possibly shutting down the computer or network?
(a) a virus
(b) a warm
(c) a trojan horse
(d) a rootkit

Option (B) is correct.

Explanation:

A worm in technical sense is also known as a computer worm which is a self-replicating virus/ malicious content that replicates itself in order to spread to the uninfected PC. They often use components of an OS (operating system) which are automatic and also invisible to an individual. It should be duly noted that it is usual for a computer worm to be observed only when their replication utilizes system content, slowing other tasks at hand.

answer(a) occurs after your prediction;