Given a prompt and four completions, select the completion that is the most plausible in continuing or answering the prompt. This task is designed to test common sense and has various categories ranging between idioms, negated statements, polysemy, subject referencing, and quantitative reasoning. Generate either Completion A, Completion B, Completion C, or Completion D.

[EX Q]: Prompt: Northwestern's Caesar system is the foundation of their student interface. That's because 
Completion A: it handles loans, registration, and other essential services. 
Completion B: Caesar is a robot that heckles students if they don't complete school requirements. 
Completion C: Caesar controls their grades. 
Completion D: Caesar was an Ancient Roman emperor who ruled at the apex of the empire.
[EX A]: Completion A

[EX Q]: Prompt: The ants are marching across the tile. They 
Completion A: are carrying food to their home. 
Completion B: want to be able to become the next humans. 
Completion C: want to get stepped on. 
Completion D: want to be their for their owners.
[EX A]: Completion A

[EX Q]: Prompt: A girl keeps on pulling my leg. The girl 
Completion A: then tries to pull my arm 
Completion B: then pulls my other leg 
Completion C: needs to learn how to be honest 
Completion D: wants to play
[EX A]:
Completion C