The Text Features a Photograph of a Prominent U

The text features a photograph of a prominent U.S. family, the Kennedys. We often refer to a family group as a clan ("Kennedy clan") and not a lineage ("Kennedy lineage") . How is this consistent with an anthropological definition of clan?

A) It has no founding ancestor but does have deep genealogical documentation.
B) It has a founding ancestor and deep genealogical documentation.
C) It has a founding ancestor but does not have deep genealogical documentation.
D) It has no founding ancestor and does not have deep genealogical documentation.