The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Dunlop's beta hypothesis is useful for the treatment of:   (A) Bruxism.   (B) Thumb sucking.   (C) Mouth breathing.   (D) Tongue thrusting.
['(B) Thumb sucking. <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Bruxism. \n (B) Thumb sucking. \n (C) Mouth breathing. \n (D) Tongue thrusting. <> possible answers', "  Dunlop's beta hypothesis is useful for the treatment of: <> context@"]