The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Action of the muscle marked (with arrow) on mandible is   (A) Elevation   (B) Depression   (C) Retraction   (D) Protraction
['(A) Elevation <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Elevation \n (B) Depression \n (C) Retraction \n (D) Protraction <> possible answers', '  Action of the muscle marked (with arrow) on mandible is <> context@']