Answer: A) The strength of hope.
Explanation: In literature, the theme is the underlying message of a story, it is what critical belief about life is the author trying to convey in the writing of a novel, play, short story or poem. Usually this belief, or idea, is universal and transcends cultural barriers. In the given excerpt from the poem "Hope is a Thing with Feathers" we can see developed the theme of the strength of hope, in the way the speaker describes how it never stops and perches in the soul.
