Graham Greene's works often focus on themes of
a. death.
b. survival.
c. betrayal.
d. optimism.
The answer that is most appropriate from the question is
that Graham Greene's works often focus on themes of betrayal. The answer is letter C.
Even though the story revolves around the premise of the aunts' mercy killings, the central conflict is with Jonathan. Without Jonathan's arrival as the primary antagonist, there would be few to no real obstacles between Mortimer and his goal of protecting his aunts and committing Teddy.
