I would say shame, since the line says "repentance", which means to express that you are sorry for something. You would do this usually if your are ashamed of something you did and want to apologize.
Answer:
I'm not sure what story you are reading but some common tones for objection include: threatening, stern and serious.
“How could you have the heart to put your own child out among strangers?”
Answer: The first phrase
Explanation: I took the test (: