Answer:
C. The repetition highlights the speaker's pleased tone, as he or she is ready for apocalypse
Step-by-step explanation:
Option C is correct because it actually highlights the speaker's pleased tone, as he or she is ready for apocalypse.
From the poem, we discover that the speaker stated, "Surely some revelation is at hand" - this information actually reveals that the speaker was ready for an apocalypse (an unveiling of a knowledge or revelation). Then he shows/exemplifies that when he exclaimed, "Surely the Second Coming is at hand. The Second Coming!". This statement reveals that the speaker is pleased about was to take place.