Four Criminals Engage in a Drug Dealing Enterprise, Where All

Four criminals engage in a drug dealing enterprise, where all four are actively dealing drugs together. When they are arrested the police find a fully automatic Tech-9 weapon. The other three criminals stated they had no idea the fourth criminal had a weapon. All four were charged in Federal Court.

A) Broadly speaking, an action taken after a crime has been committed is called a/an:
B) post-crime offense.
C) aider.
D) abettor.
E) conspiracy.