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: Many types of frogs are poisonous. An elephant 
Completion A: can poison a predator with its tongue. 
Completion B: is not one of them. 
Completion C: can blend in with its surroundings. 
Completion D: is one of them.
[EX A]: Completion B

[EX Q]: Prompt: Books like this are a dime a dozen. They 
Completion A: are worth a lot of money. 
Completion B: sell really well. 
Completion C: have very rich authors. 
Completion D: are not written very well.
[EX A]: Completion D

[EX Q]: Prompt: A student is sitting in class. He 
Completion A: decided to become a train. 
Completion B: is doing his homework. 
Completion C: thinks the earth is flat. 
Completion D: is preparing dinner.
[EX A]:
Completion B