Problem: How does the sentence end?

Dennis was a cat person but Neil was a dog person. 
OPTIONS:
- Dennis bought a cute puppy.
- Neil bought a cute puppy.
Answer: Neil bought a cute puppy.

Problem: How does the sentence end?

Erin but not Rachel was looked at funny because 
OPTIONS:
- Erin did not have a huge eyebrow piercing.
- Rachel did not have a huge eyebrow piercing.
Answer: Rachel did not have a huge eyebrow piercing.

Problem: How does the sentence end?

The tool is not capable of turning the bolt without twisting because the 
OPTIONS:
- tool is weak.
- bolt is weak.
Answer: tool is weak.

Problem: How does the sentence end?

The cat of Jessica had worms but not the cat of Kayla so the cat of 
OPTIONS:
- Jessica had weight fluctuations.
- Kayla had weight fluctuations.
Answer:
Jessica had weight fluctuations.