With no explanation, chose the best option from "A" or "B". Keith is drinking a beer on his porch after completing yard work with his 15 year old son John. Keith wants to commend John for a job well done.

A: Keith offers John an ice cream from a local shop as a reward for working hard in the yard.
B: Keith offers John a beer as a 'thank you' for helping out with the yard work.
A.