Since 'altruism' means 'feelings and behavior that show a desire to help other people and a lack of selfishness', and this word 'altruistic' ends with -ic, we can assume, based on its structure, that this is an adjective that is used to describe a person who behaves in such a way.
The entire quatrain where that phrase is found talks about time itself. It says that time gives beauty, thus making that particular person handsome, but time also takes away that same beauty - unfair which fairly doth excel. What was once young and beautiful will become old and wither as time goes by.
D is not your answer. Someone who is bitter and exhausted has learned something that made them bitter and exhausted. They have changed.
C is not your answer. We have a hook here. We're drawn in to find out why she is different. That's not a flat character.
A is not your answer. These twins have a conflict. It is a natural way to develop a story.
B as charming as he sounds, his charm and wit lead us nowhere. He is a foil for the main character. Our pleasure in him is only momentary. B is the answer.
The best inference from the given excerpt is that B) The family values work.
Explanation: Hannah took the necessary actions and made efforts for relieving an comforting the girls by coming to their rescue that they can work for the family and be a credit to their family. They can be useful for the family with the help of the works they do and the deed they perform after being comfortable.