The biased question is C. "Do you feel that the TV news is a sensational portrayal of life’s problems?" because it contains a value judgment ("sensational portrayal") that may lead the respondent to answer in a particular way. It suggests that the TV news is overly dramatic or exaggerated in its coverage of issues, which may not be a belief held by all respondents. The other questions (A, B, and D) do not contain value judgments and are more straightforward in nature.