The US Cases Regarding Privilege in Which Things Have Gone Badly

Multiple Choice

The U.S. cases regarding privilege in which things have gone badly for researchers they all failed to meet which Wigmore criteria?

A) The communications must originate in a confidence that they will not be disclosed.
B) This element of confidentiality must be essential to the full and satisfactory maintenance of the relation between the parties.
C) The injury that would inure to the relation by the disclosure of the communications must be greater than the benefit thereby gained for the correct disposal of litigation.
D) The relation must be one in which the opinion of the community ought to be sedulously fostered.