Answer:
D, the last one.
Explanation:
Its the right and correct way to do so.
I would go with D) Mob because if its a negative connotation than mob would be the right answer because an assembly is not negative, not a gathering, and not a group because those could be BOTH positive AND negative but we want to find ONLY negative so mob because mobs are big groups of violent crazy people causing chaos.
A colon because it's formal.
They are synonyms because they both have the root word "enter" thus making them synonym hope i helped and thank you for using brainly. :)
