Detailed Instructions: 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.
Q: Prompt: Mobile phones are harmful when growing children use them. Mobile phones 
Completion A: should be given to growing children to play everyday 
Completion B: hinder parents growing up 
Completion C: should not be shown to children as they grow 
Completion D: should be given to growing children to play so that they don't get bored
A:
Completion C