[Q]: How does the sentence end?

Rabbits are cute but Nelson was allergic, but not Brian, so
OPTIONS:
- Nelson had one for a pet.
- Brian had one for a pet.

[A]: Brian had one for a pet.

[Q]: How does the sentence end?

They needed more cushions on the chair than the sofa because the
OPTIONS:
- chair was harder.
- sofa was harder.

[A]: chair was harder.

[Q]: How does the sentence end?

Adam explained his emotions to Robert, because
OPTIONS:
- Adam offered help as a therapist who could deal with complex emotions.
- Robert offered help as a therapist who could deal with complex emotions.

[A]:
Robert offered help as a therapist who could deal with complex emotions.