Banquo is wondering if Macbeth took the crown unjustly.
The answer would be D, it is half of what it was before.
In some cases like the word vice, the negative connotation stems from a direct definition of the word(vice means wicked, but another definition is 'a substitute for' so 'vice president'). In other cases, word may be used in a culture to identify a group or individual that is portrayed negatively, thus modifying the inherent definition of the word to better portray how society thinks of the word.
I'd go with the second choice, it has the most detail and sensory imagery. As it has him singing a sad song while burying the bird.
D is the correct option because I think the clown who wore the bright red suit is the subordinate clause