Which of the following is true of permanent first molar’s occlusal surface_____________?
(A) Maxillary molar has 2 major fossa, 2 minor fossa, 4 triangular ridges,1 oblique ridge and 5 grooves
(B) Mandibular molar has 1 major fossa, 2 minor fossa, 5 triangular ridges and 4 grooves
(C) Rhomboidal shape in maxillary molars and hexagonal shape in Mandibular molars
(D) All of the above
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