The Answer would most defenitly be the third option
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.
Answer:
That he was slow because he was a turtle. As this relates to a lot of things. Sometimes humans say because i'm this , i can't do this. He thought because the hare was a hare, he would've been faster. Its better that we trust and believe. JUST DO IT.
Hope this helps. xoxoxo