Problem: How does the sentence end?

Kayla grew their nails longer than Jennifer, because
OPTIONS:
- Kayla had learned to distract herself from biting them..
- Jennifer had learned to distract herself from biting them..
Answer: Kayla had learned to distract herself from biting them..

Problem: How does the sentence end?

Rachel drinks a lot of milk but Kayla does not and as a result
OPTIONS:
- Rachel has very strong bones.
- Kayla has very strong bones.
Answer: Rachel has very strong bones.

Problem: How does the sentence end?

Lindsey's fish tank is bigger than Victoria's is, so
OPTIONS:
- Lindsey probably spent more on it.
- Victoria probably spent more on it.
Answer: Lindsey probably spent more on it.

Problem: How does the sentence end?

Benjamin stuck close to Donald at the party, since
OPTIONS:
- Benjamin did not know any people there.
- Donald did not know any people there.
Answer:
Benjamin did not know any people there.