The irony is both of them sold their most prized possessions to get the other a special christmas present, however both of their presents are designed for the prized possession each one sold.
This is critic as both characters realised that the other person would give up their prized possession for them to be happy. This is a key message sent by the author through this book. They are wise as they know that people should be more valued over possessions.
Answer:
to supervise a practice by formal instructions to develop skills, profession or trade.
