[Q]: How does the sentence end?

Jason made it to puberty a few months before Christopher, so
OPTIONS:
- Jason spoke with a higher voice.
- Christopher spoke with a higher voice.

[A]: Christopher spoke with a higher voice.

[Q]: How does the sentence end?

Rebecca was not able to do as well in high school as Emily because
OPTIONS:
- Rebecca did not work very hard at studying.
- Emily did not work very hard at studying.

[A]: Rebecca did not work very hard at studying.

[Q]: How does the sentence end?

Brian had a fun afternoon out on the boat, while Joseph hated every second.
OPTIONS:
- Brian never got seasick.
- Joseph never got seasick.

[A]:
Brian never got seasick.