Problem: How does the sentence end?

Joel printed the document and prepared his quarterly presentation to Christopher, because 
OPTIONS:
- Joel was paid to do so.
- Christopher was paid to do so.
Answer: Joel was paid to do so.

Problem: How does the sentence end?

Katrina was invited by Amy over to jump in a piles of leaves after 
OPTIONS:
- Katrina raked them into a pile.
- Amy raked them into a pile.
Answer: Amy raked them into a pile.

Problem: How does the sentence end?

Brian decided to use a rake instead of a shovel for the leaves because the 
OPTIONS:
- rake couldn't grab them.
- shovel couldn't grab them.
Answer: shovel couldn't grab them.

Problem: How does the sentence end?

Carrie prepared a big plate of pasta for Tanya, although 
OPTIONS:
- Carrie said it was not her favorite.
- Tanya said it was not her favorite.
Answer:
Tanya said it was not her favorite.