Final answer:
The burden of proof in a criminal case is not directly related to any specific amendment. B) The Sixth Amendment guarantees the right to an impartial jury in criminal cases.
Step-by-step explanation:
The burden of proof in a criminal case is not directly related to any specific amendment. The burden of proof refers to the responsibility of the prosecution to provide enough evidence to convince the jury of the defendant's guilt beyond a reasonable doubt. However, the Sixth Amendment guarantees the right to an impartial jury in criminal cases. This means that during the jury selection process, both the prosecution and the defense have the opportunity to reject potential jurors they believe cannot fairly decide the case without prejudice.