In the Case of Funk V

In the case of Funk v. United States, which considers the traditional rule prohibiting a wife from testifying for or against her husband in a criminal case, the court discussed the development of the rules of evidence. There the court found that:

A) rules of evidence, once established, cannot be changed by court decision.
B) the common law relating to the rules of evidence is not immutable, but is flexible and may be adapted to varying conditions.
C) common law rules of evidence that developed under the English system must be followed in the United States.
D) the court must continue to enforce the traditional rule, which prohibits a wife from testifying for her husband in a criminal case.