青书学堂: (单选题) English consonants can be classified into stops. fricatives, nasals, etc. , in terms of ( )(本题1.0分)

Which of the following is correct regarding the pericardial friction sound ? A: Rough, low pitch B: Consistent with breathing and heart beat C: The voice is loudest between the 3rd and 4th costals of the left margin of the sternum D: The fricatives will disappear when you hold your breath