Problem: How does the sentence end?

Ryan spent a lot more money at the greenhouse sale than Steven because 
OPTIONS:
- Ryan doesn't have a plant obsession.
- Steven doesn't have a plant obsession.
Answer: Steven doesn't have a plant obsession.

Problem: How does the sentence end?

Beth used hickory boards instead of aspen boards to stabilize her tunnel, because the 
OPTIONS:
- hickory boards were stronger.
- aspen boards were stronger.
Answer: hickory boards were stronger.

Problem: How does the sentence end?

They got the toxins out of his body by cutting his leg open with a knife letting the blood drain out. The 
OPTIONS:
- knife was very sharp.
- blood was very sharp.
Answer: knife was very sharp.

Problem: How does the sentence end?

Nick found it very easy to learn chemistry but Christopher did not because 
OPTIONS:
- Nick was quite clever.
- Christopher was quite clever.
Answer:
Nick was quite clever.