[Q]: How does the sentence end?

Betty relied on Sarah to monitor her work since
OPTIONS:
- Betty was deficient at keeping track of her schedule.
- Sarah was deficient at keeping track of her schedule.

[A]: Betty was deficient at keeping track of her schedule.

[Q]: How does the sentence end?

It is very easy to chip a nail without necessarily breaking a finger. The
OPTIONS:
- Finger is very fragile.
- Nail is very fragile.

[A]: Nail is very fragile.

[Q]: How does the sentence end?

The pilot took Katrina up for a free ride in the plane unlike Cynthia because
OPTIONS:
- Katrina asked politely.
- Cynthia asked politely.

[A]:
Katrina asked politely.