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 most likely reason why Gabriel choose to write his essay with this point of view is because, a narrative essay tells a story about the writer's life, therefore it is most effective to tell the story from the writer's point of view. The correct option is B. In the passage given above, Gabriel wrote the passage based on his own perspective.
I'd say the third sentence sounds very supportive, it supports the idea and positivity that service brings.
Daydreaming. Kinda obvious xD