Problem: How does the sentence end?

The home of Brian was flooded more than Kyle's because 
OPTIONS:
- Brian lives closer to the water source.
- Kyle lives closer to the water source.
Answer: Brian lives closer to the water source.
sentence: Getting ripped off was something that happened to Carrie regularly but not to Lindsey because  OPTIONS:
- Carrie always paid attention to their store receipts.
- Lindsey always paid attention to their store receipts.
complete: Lindsey always paid attention to their store receipts.
Natalie really enjoyed singing publicly but Katrina did not as 
OPTIONS:
- Natalie had a dreadful singing voice.
- Katrina had a dreadful singing voice.
Katrina had a dreadful singing voice.
Input: Continue writing.

I prefer sending emails much more than I like sending letters, because the 
OPTIONS:
- emails are convenient.
- letters are convenient.

Continued: emails are convenient.
Story needs to be completed:
Sam had to control his diet by eating only mushroom and broccoli, but he only ate the 
OPTIONS:
- broccoli to increase his greens.
- mushroom to increase his greens.

My choice:
broccoli to increase his greens.
Problem: How does the sentence end?

I think it's easier to be a student at private school rather than at public school as as the 
OPTIONS:
- private school has less people.
- public school has less people.
Answer:
private school has less people.