Although many of these answers could be correct, I would argue that B is the most correct one?
In the rest of the play, Macbeth is often portrayed as a coward, often unwilling to go through with a plan. His sudden display of bravery is very new, perhaps driven by his insanity.
The answer is D. at a distance
It requires you to point things out that are wrong even if it might offend the person who is speaking, writing etc.
