"like a sunbeam" - it is used to give deeper meaning and description to what her face looks like in person so the reader can feel as if they are standing in front of her seeing that face.
Use google then that’s what i use
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.