input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following increases callus formation:   (A) Rigid immobilization   (B) Movement at fracture site   (C) Compression plating   (D) Intraosseous nailing
output: ['(B) Movement at fracture site <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Rigid immobilization  (B) Movement at fracture site  (C) Compression plating  (D) Intraosseous nailing <> possible answers', '  Which of the following increases callus formation: <> context']