The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following is premalignant -   (A) Chronic glossitis   (B) Submucous fibrosis   (C) Hypertrophic glossitis   (D) Aphthous stomatitis
['(B) Submucous fibrosis <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Chronic glossitis \n (B) Submucous fibrosis \n (C) Hypertrophic glossitis \n (D) Aphthous stomatitis <> possible answers', '  Which of the following is premalignant - <> context@']