Problem: How does the sentence end?

Elena wanted to show off her rock throwing skills to Emily , so
OPTIONS:
- Elena threw a few rocks .
- Emily threw a few rocks .
Answer: Elena threw a few rocks .

Problem: How does the sentence end?

She had a lower back pain but her headache was gone, so the
OPTIONS:
- lower back problem was bothering her.
- headache problem was bothering her.
Answer: lower back problem was bothering her.

Problem: How does the sentence end?

Megan probably has the flu while Tanya does not because
OPTIONS:
- Megan has all the symptoms of the flu.
- Tanya has all the symptoms of the flu.
Answer: Megan has all the symptoms of the flu.

Problem: How does the sentence end?

John thought his hand was broken, but it was actually his foot because the
OPTIONS:
- foot was straight.
- hand was straight.
Answer:
hand was straight.