[Q]: How does the sentence end?

Ian slipped on oil that Donald spilled all over the kitchen floor. 
OPTIONS:
- Ian was sorry.
- Donald was sorry.

[A]: Donald was sorry.


[Q]: How does the sentence end?

During the concert the ukulele sounded worse than the guitar because the 
OPTIONS:
- ukulele was out of tune.
- guitar was out of tune.

[A]: ukulele was out of tune.


[Q]: How does the sentence end?

Benjamin cared a lot less in his gardening than Kyle because 
OPTIONS:
- Benjamin had fewer important things to do.
- Kyle had fewer important things to do.

[A]:
Kyle had fewer important things to do.