input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 55-year-old male presents with severe backache for 10 days and urinary incontinence with a H/o Interveebral lumbar disc prolapse. There is no H/o fever or weight loss. What is the likely diagnosis?   (A) Potts spine   (B) Multiple myeloma   (C) Cauda equine syndrome   (D) Bone metastasis
output: ['(C) Cauda equine syndrome <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Potts spine  (B) Multiple myeloma  (C) Cauda equine syndrome  (D) Bone metastasis <> possible answers', '  A 55-year-old male presents with severe backache for 10 days and urinary incontinence with a H/o Interveebral lumbar disc prolapse. There is no H/o fever or weight loss. What is the likely diagnosis? <> context']