The plant was harder to take care of than the tree because the
OPTIONS:
- tree needed more attention.
- plant needed more attention.
plant needed more attention.

The athlete hurt his legs more than his arms because he forgot to stretch his
OPTIONS:
- legs .
- arms .
legs .

The cat of Brian had a case of vomiting, while Kenneth's was just fine, because
OPTIONS:
- Brian 's cat doesn't eat a lot of fur.
- Kenneth 's cat doesn't eat a lot of fur.
Kenneth 's cat doesn't eat a lot of fur.