Because Telephone Conversation Evidence Must Be Authenticated as Belonging to a Particular

Because telephone conversation evidence must be authenticated as belonging to a particular person before it can be considered competent to be introduced in court, in order to authenticate a voice as belonging to a particular person:

A) it is necessary that an authorized wiretap order be obtained.
B) one method of authentication is to require that the speaker's voice be identified by the witness/party to the phone conversation after proof that the witness possessed familiarity with the questioned voice of the other party.
C) a record keeper at the phone company that has the records must come to court and explain that computer records indicated that the two particular phones were connected at the relevant time.
D) the other person who was the questioned party to the phone conversation must come to court and admit that he or she talked on the phone to the first witness who mentioned the phone conversation. This is the sole method of authenticating a phone conversation.