59.如圖所示,捏擠龜頭會引起肛門括約肌收縮,這是何種反射? (A)肛門(anal)反射 (B)球海綿體肌(bulbocavernosus)反射 (C)提睪肌(cremasteric)反射 (D)會陰(pudendal)反射