Problem: How does the sentence end?

The teens of Rachel are better behaved than the ones Mary has because 
OPTIONS:
- Rachel is more laid back.
- Mary is more laid back.
Answer: Mary is more laid back.
sentence: People voted whether Robert's fancy red costume or Aaron's simple blue costume was the best superhero outfit, after the fancy red one won  OPTIONS:
- Robert was happy.
- Aaron was happy.
complete: Robert was happy.
The house was built out of bricks instead of logs because 
OPTIONS:
- bricks provided for a sturdier foundation.
- logs provided for a sturdier foundation.
bricks provided for a sturdier foundation.
Input: Continue writing.

The rod cannot easily move around while being used to stir the liquid in the drum because the 
OPTIONS:
- rod is wide.
- drum is wide.

Continued: rod is wide.
Story needs to be completed:
Betty is at the store buying products where Sarah has worked for ten years, 
OPTIONS:
- Betty is selling goods.
- Sarah is selling goods.

My choice:
Sarah is selling goods.
Problem: How does the sentence end?

Monica was a big fan of art but Rachel was a sports fan. 
OPTIONS:
- Monica bought a ticket to the football game.
- Rachel bought a ticket to the football game.
Answer:
Rachel bought a ticket to the football game.