[Q]: How does the sentence end?

Robert cleaned their countertop very well but Nick did not. 
OPTIONS:
- Robert had a dirty home.
- Nick had a dirty home.

[A]: Nick had a dirty home.


[Q]: How does the sentence end?

Christopher always gets knocked down by Steven when they fight each other in the boxing ring. 
OPTIONS:
- Christopher is strong.
- Steven is strong.

[A]: Steven is strong.


[Q]: How does the sentence end?

My friend hated the piano lessons but loved the guitar courses because the 
OPTIONS:
- lessons were lame.
- courses were lame.

[A]:
lessons were lame.