This question is about the poem "No Man is an Island", by John Donne.
Answer:
The statement that best describes a theme of the poem is:
C. Everyone and everything in the world is connected as part of a larger whole.
Explanation:
No wonder the title of the poem says no man is an island. We are all connected; we are a continent, a family. If one of us dies, no matter where in the world, all the rest of us should grieve, according to the speaker. We are a part of a larger whole. No man is truly isolated for all men are a part of humankind:
[...]any man's death diminishes me,
because I am involved in mankind.
And therefore never send to know for whom
the bell tolls;
it tolls for thee.