<prompt> The following statement is true about internal rotation of the head?Rotation occurs mostly in the cervixIn majority, rotation occurs in the pelvic floorRotation occurs commonly during crowning of the headRotation is easier in primiparae than multiparae  <response>: The level at which internal rotation occurs is variable. Rotation in the cervix although orable is a less frequent occurrence. In a majority of cases, rotation occurs in the pelvic floor. Rarely it occurs as late as during crowning of the head.D.C.DUTTA;S TEXTBOOK OF GYNECOLOGY, Pg no:125,7th edition 