Problem: How does the sentence end?

Aaron got a new pet dog for his birthday but not Neil because
OPTIONS:
- Aaron is allergic to dogs.
- Neil is allergic to dogs.
Answer: Neil is allergic to dogs.

Problem: How does the sentence end?

Jessica offered to give Betty a hand unloading the groceries although
OPTIONS:
- Jessica was not struggling with the bags.
- Betty was not struggling with the bags.
Answer: Betty was not struggling with the bags.

Problem: How does the sentence end?

Natalie took much longer to wash their hair than Sarah although
OPTIONS:
- Natalie had longer hair.
- Sarah had longer hair.
Answer: Sarah had longer hair.

Problem: How does the sentence end?

James found that the tank was surprisingly easy to operate and not the vehicle because the
OPTIONS:
- tank had simple controls.
- vehicle had simple controls.
Answer:
tank had simple controls.