Read the passage.
In the resolution of the story, what do the son and his wife do to show they have learned something important?
A 
They treat the old man as their equal and never scold him for making a mess.
B 
They begin to gather pieces of wood to make a trough for themselves.
C 
They apologize for their cruel treatment and beg for the old man's forgiveness.
D 
They buy the old man a special wooden bowl so that he can't break it, like the clay one.