input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Apical migration of the epithelial attachment with corresponding recession of the marginal gingiva results in?   (A) A shallow sulcus   (B) Gingival pocket formation   (C) Infrabony pocket formation   (D) Periodontal pocket formation
output: ['(A) A shallow sulcus <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) A shallow sulcus  (B) Gingival pocket formation  (C) Infrabony pocket formation  (D) Periodontal pocket formation <> possible answers', '  Apical migration of the epithelial attachment with corresponding recession of the marginal gingiva results in? <> context']