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.

Let me give you an example: Prompt: A clown is fashioning animals from long balloons. He 
Completion A: releases the animals into their natural habitat. 
Completion B: makes a giraffe and hands it to a child. 
Completion C: yells out for his second in command to pilot the battleship around the obstacle. 
Completion D: releases the balloon and it flies high into the air.
The answer to this example can be: Completion B
Here is why: The clown is an entertainer and is twisting balloons to resemble an animal. There are no live animals, and these types of twistable balloons are not able to fly or float up.

OK. solve this:
Prompt: The man is helping his child with some homework. He 
Completion A: doesn't know the material though. 
Completion B: doesn't have children. 
Completion C: won't eat his dinner. 
Completion D: fires his employee.
Answer:
Completion A