Researcher: People with certain personality disorders have more theta brain waves than those without such disorders. But my data show that the amount of one's theta brain waves increases while watching TV. So watching too much TV increases one's risk of developing personality disorders.

Question: A questionable aspect of the reasoning above is that it
Options:
A. uses the phrase 'personality disorders' ambiguously, B. fails to define the phrase 'theta brain waves', C. takes correlation to imply a causal connection, D. draws a conclusion from an unrepresentative sample of data, E. infers that watching TV is a consequence of a personality disorder
Answer: "C"