The answer is B. because this is the only answer that is an immediate call to action for the situation, instead of just telling you facts like the other answers, this answer tells you straight up what you should do.
Have the question been understood by you?
Answer:
The narrator calls Della and Jim "the most wise" for each giving up their most valuable items for each other even though giving up their most precious possession ruined one another's gift.
I think it is D
Hope this help you!!