Final answer:
Lisa is employing a Qualitative research method through content analysis to understand the portrayal of working-class and poor people in television programs.
Step-by-step explanation:
Lisa is conducting content analysis of television programs which is a method used in qualitative sociology. This approach seeks to understand human behavior by learning about it through in-depth analysis of content sources such as books, magazines, journals, and popular media. Since Lisa is exploring the portrayal of characters and aiming to understand the nuances of these portrayals without relying on numerical data, she is using the B) Qualitative research method.