Question:
Nelson had fun hiking while Donald had fun playing console video games, and OPTIONS:
- Nelson often spent time on trails.
- Donald often spent time on trails.

Answer:
Continue the sentence -- Nelson often spent time on trails.

Question:
They coughed in the living room more than in the kitchen because the OPTIONS:
- kitchen was much cleaner.
- living room was much cleaner.

Answer:
Continue the sentence -- kitchen was much cleaner.

Question:
I used the computer instead of the calculator to do my math work because the OPTIONS:
- calculator was running slower.
- computer was running slower.

Answer:
Continue the sentence -- calculator was running slower.

Question:
The screw put a deeper scratch in the wall than the nail, because the OPTIONS:
- nail was sharper.
- screw was sharper.

Answer:
Continue the sentence -- screw was sharper.