What type of notation should follow a playback of previous testimony?

The type of notation that should follow a playback of previous testimony is indicated by the phrase "The previous record was played back." This notation clearly communicates to all parties involved in the transcription process that there has been an intentional playback of testimonies, marking the point in the transcript where this action occurred. It ensures clarity and provides context for readers who might refer to the transcript later.

By using this notation, you maintain the integrity and accuracy of the record, allowing others to understand exactly what transpired during the proceedings. This is crucial in legal contexts where precise accuracy and a clear understanding of the order of events are essential for the integrity of the record.

The other choices do not adequately convey that a playback of previous testimony has taken place, thus failing to provide the necessary clarity and context for the transcript.