38.如圖所示，胎兒呈何種胎位（presentation）、胎向（position）、胎勢（posture）？ (A)anterior presentation, dorsal position, lateral deviation of the head (B)posterior presentation, ventral position, lateral deviation of the head (C)posterior presentation, dorsal position, lateral deviation of the head (D)anterior presentation, ventral position, lateral deviation of the head