Problem: How does the sentence end?

Katrina preferred a window seat on the plane while Rachel preferred an aisle because 
OPTIONS:
- Katrina did not care about the view out of the window.
- Rachel did not care about the view out of the window.
Answer: Rachel did not care about the view out of the window.

Problem: How does the sentence end?

Mary started to drill a large hole in Rebecca's front door, because 
OPTIONS:
- Mary was locked out of his house.
- Rebecca was locked out of his house.
Answer: Rebecca was locked out of his house.

Problem: How does the sentence end?

Rebecca can do the laundry more quickly than Betty because 
OPTIONS:
- Rebecca has much more experience doing it.
- Betty has much more experience doing it.
Answer: Rebecca has much more experience doing it.

Problem: How does the sentence end?

We used the tank to store the water instead of the bucket because the 
OPTIONS:
- tank was cleaner.
- bucket was cleaner.
Answer:
tank was cleaner.