An ancestor is a person from whom one is descended, such as a parent, grandparent, or great-grandparent. Considering the options provided:
-
His second cousin who lives in the same town: This person is not an ancestor; they are a relative of the same generation.
-
His grandmother, who lives in another state: This person is indeed an ancestor, as she is a direct relative from a previous generation.
-
His best friend’s great, great, great grandfather: This person is an ancestor to someone else (David’s friend), but not to David himself.
-
His first relative to move to the U.S. in 1850: This person could be considered an ancestor if they are a direct ancestor, but the relationship is unclear without more context.
The correct answer is: his grandmother, who lives in another state.