Option 4 would be the more biased option because only some people may think that if you don't buy enough boxes you are stupid. Option for is more of an opinion therefore making it biased.
It has an end rhyme, but it's also a couplet because they two lines together tell a story.
Haemon leaves feeling (C) disgusted after the argument with his father.
He approaches his father, in hopes that his father will show mercy on Antigone. But when that doesn't happen, the two begin fighting and Haemon leaves, vowing never to see his father again.