input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** The use of stress breaker in modern dentistry is avoided because   (A) It affects abutment more   (B) It affects alveolar ridge   (C) It affects both abutment and alveolar ridge   (D) None of the above
output: ['(B) It affects alveolar ridge <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) It affects abutment more  (B) It affects alveolar ridge  (C) It affects both abutment and alveolar ridge  (D) None of the above <> possible answers', '  The use of stress breaker in modern dentistry is avoided because <> context']