In Berghuis, which one of the followings describes the ruling of the Court regarding whether the defendant waived his right to remain silent?The defendant did not waive his right for he did not sign a waiver card. The defendant waived his right for he stated that he would waive his right. The defendant did not waive his right for he insisted that he would exercise his right. The defendant waived his right for he engaged in conduct inconsistent with the exercise of the right.