Problem: Jason had to ask Randy for help checking their car's differential because

My choice: Randy always works on their own car.

Problem: While walking with Dennis, Kenneth got their arm infected by poison ivy so

My choice: Dennis gave them some cream.

Problem: Sara thought she might have a problem with coffee but was fine with alcohol because the

My choice: coffee was an addiction.

Problem: Because Samuel bought a new computer while Ian bought a used one, the computer of

My choice:
Ian was slower and less up to date.