Which of the Following Would Be the Clearest Example of Freud's

Which of the following would be the clearest example of Freud's defense mechanism of projection?

A) someone who gets angry with his boss keeps quiet until he gets home and then kicks the dog
B) an adult who fails at business and begins to act like a teenager again
C) a witness to a bloody automobile accident forgets all the relevant details
D) someone who has used illegal drugs accuses other people of being drug users