The following are multiple choice questions (with answers) about medical knowledge.   **Question:** True open bite is caused by   (A) Horizontal fracture of the maxilla   (B) Unilateral fracture of mandibular angle   (C) Fracture of the coronoid process of left side of mandible   (D) Fracture of mandibular symphysis
['(A) Horizontal fracture of the maxilla <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Horizontal fracture of the maxilla \n (B) Unilateral fracture of mandibular angle \n (C) Fracture of the coronoid process of left side of mandible \n (D) Fracture of mandibular symphysis <> possible answers', '  True open bite is caused by <> context@']