A Breach in Confidentiality Occurs

A breach in confidentiality occurs. Which of the following represent a breach in confidentiality?

A) The teenaged son of a researcher reads some of the raw interview data on the researcher's computer.
B) The researcher accidentally includes the real names of one participant's husband and two daughters in the finished article, instead of changing these to pseudonyms.
C) A researcher presents her findings at a research conference.
D) A tape of a research interview is misplaced in the researcher's home, and is never found.
E) The researcher mentions to a colleague that all of the participants in a recent research project on anger were divorced women.