sentence: Jim replaced his pen with a stress ball at work on his desk, the OPTIONS:
- pen was round.
- stress ball was round.
complete: stress ball was round.

sentence: Maria showed Cynthia how to clean their engine since OPTIONS:
- Maria had extensive knowledge about cars and trucks.
- Cynthia had extensive knowledge about cars and trucks.
complete: Maria had extensive knowledge about cars and trucks.

sentence: Wren solved the math problem using the calculator instead of the smartphone because the OPTIONS:
- calculator was intuitive.
- smartphone was intuitive.
complete:
calculator was intuitive.