Which of the following would constitute a violation of the ethical standard of confidentiality?

a. At a conference, a psychologist presents the neuropsychological assessment scores for an Alzheimer's patient, telling the audience only that the data came from "a 64-year-old Caucasian male.".
b. A professor shows a portion of a therapy session with one of his clients during a graduate seminar, after having obtained the client's consent to do so.
c. A study author indicates that participants were 203 undergraduate students enrolled in introductory psychology at the university during fall 2011.
d. None of the above scenarios involves a breach of confidentiality.

D