<span> reasons given with the aim of persuading others that an action or idea is right or wrong
</span>
It all flows together smoothly and it makes sense and doesn’t jump from place to place without any context
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.