If this is how you've presented the question, Its a bit hard to answer it when one hasn't read these books. It'd be best if you'd put both books into a summary for us to go based off of, at most.
Its a layer under the rainforest under all the other story the undery story is located at the bottom of the rainforest
Answer:
A. He realizes that she will probrably die in the mountains.
Explanation:
It says this in the story, "The son walked slowly, for he could not bear to think of leaving his old mother in the mountains. On and on he climbed, not wanting to stop and leave her behind."
