The second sentence contains correct comma placement
Never hate people that hate you, because they may have it worse off than you do.
The correct option is D.
The statement in option D reveals that the youthfulness which the four old people gained was very momentarily, it soon passed away and they were back to square one.
What I interpret "cut the cord" to mean is to become independent of something. Therefor I think the anwers are C) Stop depending on his parents E) Leave the farm.
The second one is the best answer