Problem: How does the sentence end?

Nick judged the pig brought to the fair by Kenneth, then 
OPTIONS:
- Nick accepted the blue ribbon.
- Kenneth accepted the blue ribbon.
Answer: Kenneth accepted the blue ribbon.

Problem: How does the sentence end?

The vinegar was used to wash the floor and make the salad with other spoiled ingredients added. The 
OPTIONS:
- floor was disinfected.
- salad was disinfected.
Answer: floor was disinfected.

Problem: How does the sentence end?

Neil really wanted to go to sleep but Christopher did not because 
OPTIONS:
- Neil was feeling very lively.
- Christopher was feeling very lively.
Answer: Christopher was feeling very lively.

Problem: How does the sentence end?

The fountain pen can not write smoothly on the paper because the 
OPTIONS:
- paper is too rough.
- fountain pen is too rough.
Answer:
paper is too rough.