Answer:
Shirley Jackson is the author of the story "Lottery".
They can't pass the exam unless they "study" hard.
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.