Most common salivary gland malignant neoplasm in bones:: (A) Pleomorphic adenoma., (B) Adenoid cystic carcinoma., (C) Mucoepidermoid carcinoma., (D) Adenolymphoma.
Answer is C. Central mucoepidermoid carcinoma of jaw is more common in mandible, especially in premolar-molar area. These lesions originate due to

Entrapment of retromolar glands within the mandible.
Due to inclusion of remnants of submaxillary glands within the mandible.