Final answer:
One picture may not be enough to identify who Richard Parker is without additional context from the story or accompanying text.
Step-by-step explanation:
Whether we know who Richard Parker is from one picture depends on the context provided within the book, movie, or other sources. If there is no prior context or information given about Richard Parker, then the answer would be b. No.
Typically, characters are developed over time within a story, and a single image often does not convey all the necessary information to ascertain who they are.