Final answer:
A politician referencing their father's work in a factory is using personal identification to create a bond with their audience.
Step-by-step explanation:
If a politician tells constituents working in a factory, "My father worked in a factory for 40 years," the politician is relying on personal identification. This form of identification is used to create a personal connection with the audience by referencing the politician's own life experience or relationships. In contrast, social identification would involve connections based on broader societal factors, cultural identification would tie in shared cultural practices or beliefs, and group identification would connect individuals based on their membership in a specific group or organization.