[Q]: How does the sentence end?

The GPS and map helped me navigate home. I got lost when the
OPTIONS:
- GPS got turned off.
- map got turned off.

[A]: GPS got turned off.

[Q]: How does the sentence end?

Christine tripped over the debris in the road unlike Carrie, because
OPTIONS:
- Christine is very attentive and alert.
- Carrie is very attentive and alert.

[A]: Carrie is very attentive and alert.

[Q]: How does the sentence end?

The air was stuffy in the kitchen but refreshing in the den, as the
OPTIONS:
- kitchen was so poorly ventilated.
- den was so poorly ventilated.

[A]:
kitchen was so poorly ventilated.