[Q]: How does the sentence end?

The man tried to throw the plastic away in the box but the 
OPTIONS:
- plastic was too small.
- box was too small.

[A]: box was too small.


[Q]: How does the sentence end?

The motorcycle that I rented from the shop is slower than my car because the 
OPTIONS:
- motorcycle has a bigger engine.
- car has a bigger engine.

[A]: car has a bigger engine.


[Q]: How does the sentence end?

Robert put a wad of gum in Michael's hair, which led to 
OPTIONS:
- Robert  spending a day in detention.
- Michael  spending a day in detention.

[A]:
Robert  spending a day in detention.