Which of the following best illustrates how the author uses metaphor to develop his theme?
A. Keats describes the emperors of the past and blames the aristocracy for damaging nature's beautiful bounty.
B. Keats refers to his own mortality and wishes he was dead.
C. Keats describes feeling as if he has drunk poison. Later, he describes hearing a beautiful bird song.
D. Keats wants to escape the realities of the world by drinking wine.