Explanation:
Harry Bittering and his family are among the first thousand Earthmen to move to Mars for the purpose of colonizing it. Yet Bittering feels out of place in his new home. His uneasiness is so profound that he wants his family to return with him to Earth. He has decided that Mars is meant to be inhabited only by Martians.
Your answer would be D: A children's story that teaches a lesson
hope i help :)
I think the answer is A, let me know if I’m wrong