Problem: How does the sentence end?

Natalie had a mosquito bite on their arm while Jennifer did not, so 
OPTIONS:
- Natalie had an itchy arm.
- Jennifer had an itchy arm.
Answer: Natalie had an itchy arm.

Problem: How does the sentence end?

The regulators decided to help the environment by putting taxes on the train but not the plane because the 
OPTIONS:
- train was green.
- plane was green.
Answer: plane was green.

Problem: How does the sentence end?

The adult was unable to put the cookie sheet in the oven, because the 
OPTIONS:
- oven was too large.
- sheet was too large.
Answer: sheet was too large.

Problem: How does the sentence end?

Emily asked Erin how to care for geraniums in the winter even though 
OPTIONS:
- Emily was a florist.
- Erin was a florist.
Answer:
Emily was a florist.