What Is the Difference Between a Computer Virus and a Worm

Multiple Choice

What is the difference between a computer virus and a worm?

A) A virus can replicate by itself, whereas a worm requires user action to replicate.
B) A worm can replicate by itself, whereas a virus requires user action to replicate.
C) A worm can deposit an illicit server, whereas a virus cannot.
D) A worm can deposit an illicit server, whereas a worm cannot.