A type of a specific example to support a sub-point would be A. a passage from a story.
A passage from a story is a specific example, written by someone else, which can support a sub-point, because it is more objective than a personal reaction to a story (C), for instance, and thus it can be considered a kind of evidence.
A sentence that gets the audience´s attention (D) and a drawing or photograph of a story (B) are not evidence and so, they cannot support a sub-point.