The answer is D. Judge no one unless you would like to be judged yourself.
One way to evaluate the validity of a website to be used in a research paper is its purpose. The writer of the paper needs to consider whether the website's purpose is to share information, report other people's work, or entertain. It is also important to understand if the website is objective, and it supports its opinions with data and references, or it is biased, and supports its ideas and information with opinion or data from a single source.
Its cheers becuase you say the pep club cheer at every football game doesnt make sense if you the pep club cheers at every football game.
I believe the answer would be C.