Problem: How does the sentence end?

The child of Natalie was better at math than the child of Rebecca, as a result of
OPTIONS:
- Natalie being a math teacher.
- Rebecca being a math teacher.
Answer: Natalie being a math teacher.

Problem: How does the sentence end?

Donald always polished his car unlike Kevin did, because
OPTIONS:
- Donald had a very old and dirty car.
- Kevin had a very old and dirty car.
Answer: Kevin had a very old and dirty car.

Problem: How does the sentence end?

Donald liked to let their hair grow out while Robert likes to keep their very short.
OPTIONS:
- Donald rarely went to the salon for a trim.
- Robert rarely went to the salon for a trim.
Answer: Donald rarely went to the salon for a trim.

Problem: How does the sentence end?

Erin's dog had a much bigger neck than Kayla's dog so
OPTIONS:
- Erin bought a shorter collar.
- Kayla bought a shorter collar.
Answer:
Kayla bought a shorter collar.