Problem: How does the sentence end?

Samantha thought infants were cute but Patricia did not. 
OPTIONS:
- Samantha hated to pinch babies cheeks.
- Patricia hated to pinch babies cheeks.
Answer: Patricia hated to pinch babies cheeks.

Problem: How does the sentence end?

Matthew gave William guppies for their birthday, and 
OPTIONS:
- Matthew learned how to raise them to keep them healthy.
- William learned how to raise them to keep them healthy.
Answer: William learned how to raise them to keep them healthy.

Problem: How does the sentence end?

Monica was having stomach pains and had a prescription and over-the-counter medications. She took the 
OPTIONS:
- prescription although it was expensive.
- over-the-counter although it was expensive.
Answer: prescription although it was expensive.

Problem: How does the sentence end?

I prefer the dermatologist's treatments for acne rather than the over-the-counter treatments, because the 
OPTIONS:
- over-the-counter treatments work fast.
- dermatologist's treatments work fast.
Answer:
dermatologist's treatments work fast.