Problem: How does the sentence end?

Tanya's homemade bird food was better than Jennifer because 
OPTIONS:
- Tanya remembered to include sunflower seeds.
- Jennifer remembered to include sunflower seeds.
Answer: Tanya remembered to include sunflower seeds.

Problem: How does the sentence end?

A caulking gun was bought at the store by Cynthia for Felicia because 
OPTIONS:
- Cynthia wanted to do a favor.
- Felicia wanted to do a favor.
Answer: Cynthia wanted to do a favor.

Problem: How does the sentence end?

Marcia wanted concrete countertops to replace the laminate ones in her house, because she thought the 
OPTIONS:
- laminate was stylish.
- concrete was stylish.
Answer: concrete was stylish.

Problem: How does the sentence end?

After her lips swelled up, Brian gave all the lip gloss to Christopher since 
OPTIONS:
- Brian was insensitive to it.
- Christopher was insensitive to it.
Answer:
Christopher was insensitive to it.