Which of the Following Statements Is True of Confidentiality and Anonymity

Which of the following statements is true of confidentiality and anonymity?

A) Confidentiality is implemented when a researcher cannot guarantee anonymity.
B) Confidentiality of participant information may occur during a research study whereas anonymity is required.
C) Confidentiality is a sign of respect for the participant by the researcher but anonymity is a legal issue.
D) Confidentiality procedures require a researcher to disclose illegal behavior whereas anonymity protects the researcher from disclosing a participant's illegal behavior.