It conveys the message that ultimately we end up just as were to be begin with, helpless. This poem compares the world to one giant stage. He states how all the men and women are merely actors in this production and that they all have their entrances and exits (life and death.)
The answer is A
hhhhhhhhhhh
"I had a fixed purpose when I put to sea.
As I sat in the boat with my band of men,
I meant to perform to the uttermost
what your people wanted or perish in the attempt,
in the fiend's clutches. And I shall fulfill that purpose,
prove myself with a proud deed
or meet my death here in the mead-hall." (632-638)