The orifice of the fourth canal in a maxillary molar is usually found:: (A) Under the Distofacial cusp, (B) Lingual to the orifice of the Mesiofacial canal, (C) On a line running from the distofacial orifice to the Mesiofacial orifice, (D) On a Line running from the Lingual orifice to the Distofacial orifice
Answer is B. None