Longest fetal diameter:: (A) Biparietal, (B) Suboccip tobregmatic, (C) Occipitofrontal, (D) Mentovertical
Answer is D. Ans is d, i.e. MentoverticalFetal diameters-AP diameters are always longer than Transverse diameter of fetal head.Longest diameter is-Mentovertical diameter (14 cms) followed by submentovertical diameter.