Problem: Mary needed the help of Christine to navigate getting their name changed on a social security card, but 

My choice: Christine couldn't help.


Problem: Leslie wanted to cosplay with Samuel because 

My choice: Leslie always had a lot of fun with him there.


Problem: The dunk Justin achieved in the game was more amazing than the one Dennis did because 

My choice: Justin is a professional basketball player.


Problem: Eric told Nelson to get a pH meter to help his garden plants grow.  

My choice:
Eric was knowledgeable.