I’m gonna have to say A. Details
Answer:
B) The point the author is trying to get across.
Yes it supports the thesis.
The kind of poem reading that the lines above represent is literal reading. There are no figures of speech here, such as metaphors, personifications, etc. which is why it's not a symbolic, figurative, or analytical reading. There is nothing to analyze here - the lines just tell the story of an eagle searching for its prey - it can't get any more literal than that.