Problem: How does the sentence end?

At the orchard, Brian picked more apples than Joseph, because 
OPTIONS:
- Brian picked apples very quickly.
- Joseph picked apples very quickly.
Answer: Brian picked apples very quickly.
sentence: Having outgrown diapers, the child switched to shorts but not pants, as the  OPTIONS:
- shorts fit poorly.
- pants fit poorly.
complete: pants fit poorly.
Christine had more problems with their public speaking class than Kayla because 
OPTIONS:
- Christine socialized more often.
- Kayla socialized more often.
Kayla socialized more often.
Input: Continue writing.

Robert forgot to charge his phone but Christopher remembered, so 
OPTIONS:
- Robert failed to respond to messages.
- Christopher failed to respond to messages.

Continued: Robert failed to respond to messages.
Story needs to be completed:
Ryan made sure Nick kept his neck straight when they sing together because 
OPTIONS:
- Ryan had a neck problem before.
- Nick had a neck problem before.

My choice:
Nick had a neck problem before.
Problem: How does the sentence end?

Natalie was scared of the dark, but Jennifer was not so 
OPTIONS:
- Natalie had a teddy bear to sleep with.
- Jennifer had a teddy bear to sleep with.
Answer:
Natalie had a teddy bear to sleep with.