Which of the Following Is Not a Limit on Plea

Which of the following is not a limit on plea bargaining imposed by the Supreme Court?

A) Pleas must be made voluntarily and without pressure.
B) A guilty plea cannot be accepted from a defendant who maintains their innocence.
C) Any promise made by the prosecutor must be kept after the defendant admits to guilt in open court.
D) Statements made during a plea bargain can be used if the defendant refuses to admit guilt in open court.