In the story, we know that Sergei uses his wishes for the goods of others,
The first one is to cure his sister's lung cancer, the second one is to cure his son's mental problems
Based on this, i think we can conclude that sergei has a kind hard and always want to help those around him without regards for himself
hope this helps
What the activities to pick
It is B his personalized style
Answer: I think it's compare and contrast but I'm not 100% sure.
I hope it's right! Let me know pls :)