The correct answer is C. However, not everyone agrees.
Step-by-step explanation
Evidence is a term that refers to something that indicates a manifest certainty that is undeniable and cannot be doubted. In general, to argue a position it is necessary to rely on credible or reliable evidence to provide accurate information to the reader. According to the above, in the fragment of the question the sentence that provides credible and true evidence is "However, not everyone agrees" because this sentence is supported by credible evidence such as the study carried out by the Journal of the American Medical Association in 2014, in which it "found that violent video game playing had a link with increased, long-term, aggressive behavior." Therefore, the correct answer is C. However, not everyone agrees.