Problem: Acne was much worse on the face of Samuel than Jason because 
OPTIONS:
- Samuel never washed his face.
- Jason never washed his face.

My choice: Samuel never washed his face.


Problem: Dennis was teaching Derrick how to kick when swimming since 
OPTIONS:
- Dennis had been swimming for several years now.
- Derrick had been swimming for several years now.

My choice: Dennis had been swimming for several years now.


Problem: Rachel wanted to have a barbecue and asked Christine to borrow their grill because 
OPTIONS:
- Rachel had a large one.
- Christine had a large one.

My choice: Christine had a large one.


Problem: Doctors usually prefer to give patients vaccines instead of medications because the 
OPTIONS:
- vaccines are less certain.
- medications are less certain.

My choice:
medications are less certain.