Answer:
It's probably C. Beth is more dutiful than her sisters.
Explanation:
The text shows that Beth's sisters are less motivated to go and help compared to Beth. The excerpt
"I'm too tired to go this afternoon," replied Meg,
rocking comfortably as she sewed.
"Can't you, Jo?" asked Beth.
"Why don't you go yourself?" asked Meg.
emphasizes this as the other sisters are too comfortable to get up and leave, and instead deflect her question by asking a question back.
