QUESTION $1$

What is the difference between a Worm and a Virus?

A$.$ There is no difference.

B$.$ They are both self$-$replicating computer programs that spread malicious code, but a worm does not need user interaction to spread, whereas a virus does need user interaction to spread.

C$.$ They both infect the Basic Input$/$Output System and can use DOS commands to spread themselves.

D$.$ They are both self$-$replicating computer programs that spread malicious code, but a virus does not need user interaction to spread, whereas a worm does need user interaction to spread.