[Q]: How does the sentence end?

I liked doing yoga on the mat more than on the floor because the 
OPTIONS:
- floor was hard.
- mat was hard.

[A]: floor was hard.


[Q]: How does the sentence end?

The girl felt that Nelson but not William was a better boyfriend because 
OPTIONS:
- Nelson was always romantic.
- William was always romantic.

[A]: Nelson was always romantic.


[Q]: How does the sentence end?

The teen decided to go with the toothpaste and not the whitener on the shelf since the 
OPTIONS:
- toothpaste was gentle.
- whitener was gentle.

[A]:
toothpaste was gentle.