The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Gingivitis   (A) Inevitably progresses to periodontitis   (B) Affects approximately 40% of adolescents   (C) Is characterized by true pocketing   (D) Is a reversible lesion
['(D) Is a reversible lesion <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Inevitably progresses to periodontitis \n (B) Affects approximately 40% of adolescents \n (C) Is characterized by true pocketing \n (D) Is a reversible lesion <> possible answers', '  Gingivitis <> context@']