I would really love to help you out. You could probably write a book about giving during Christmas.
Gist of the story - You could add in a few characters lets say Jim and Jane. You could actually contrast both of them by saying that Jim had a giving attitude but Jane had a taking attitude. And you can say that how Santa gave them a quest to complete and Jane learnt the importance of giving.
Summary: Here they are, Jim and Jane in North Pole. They had received an invitation from Santa. But why? Will Jane learn her lesson? Will Santa take her off the naughty list? To know read this amazing story of giving.
A and C are both good answers but the idea conveyed especially in the words, "even if it's not my child", and other sentences in this excerpt, lead me to believe A is ur best answer/
