At the ACME Widget Company, the Computers Have Started Behaving

Multiple Choice

At the ACME Widget Company, the computers have started behaving weirdly. Chris noticed that his directory had some files that he didn’t remember putting on his computer. Lesley noticed her computer was beginning to run very slowly, and Kim realized she was getting replies to emails she had not sent. The owner of the ACME Widget Company has contacted you to see if their company might have a computer security problem.
-ACME Widget Company is concerned it may have a ____,which is a self-replicating program designed to carry out some unauthorized activity on a victim's computer.

A) virus
B) worm
C) Trojan horse
D) bot