Problem: How does the sentence end?

I decided to go to the barbershop instead of my usual salon because I just needed a trim and the 
OPTIONS:
- barbershop was faster and cheaper.
- salon was faster and cheaper.
Answer: barbershop was faster and cheaper.

Problem: How does the sentence end?

The burial plot of 
OPTIONS:
- Erin  was being prepared as Erin had become a hero for defeating the villain Kayla.
- Kayla  was being prepared as Erin had become a hero for defeating the villain Kayla.
Answer: Kayla  was being prepared as Erin had become a hero for defeating the villain Kayla.

Problem: How does the sentence end?

Christopher had to fasten their shoes more often than Randy because 
OPTIONS:
- Christopher had velcro on their shoes.
- Randy had velcro on their shoes.
Answer: Randy had velcro on their shoes.

Problem: How does the sentence end?

The oil change was less expensive than the tire rotation, so the 
OPTIONS:
- oil change was probably tougher for the mechanic.
- tire rotation was probably tougher for the mechanic.
Answer:
tire rotation was probably tougher for the mechanic.