Problem: How does the sentence end?

Sarah was constantly feeling dizzy but not Betty because
OPTIONS:
- Sarah was experiencing symptoms of vertigo.
- Betty was experiencing symptoms of vertigo.
Answer: Sarah was experiencing symptoms of vertigo.

Problem: How does the sentence end?

The observations Logan had shown that Joseph is ahead of the game due to
OPTIONS:
- Logan being inconsistent.
- Joseph being inconsistent.
Answer: Logan being inconsistent.

Problem: How does the sentence end?

She decided to exercise on the bike instead of the treadmill because the
OPTIONS:
- treadmill was less effective.
- bike was less effective.
Answer: treadmill was less effective.

Problem: How does the sentence end?

Victoria dyed the hair of Jennifer a bright red, and
OPTIONS:
- Victoria thanked them for doing such a great job.
- Jennifer thanked them for doing such a great job.
Answer:
Jennifer thanked them for doing such a great job.