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.
-You think that the computers at ACME Widget Company may be infected with a ____.You explain that it is a set of program instructions that attaches itself to a file and spreads to other files.

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