<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:One day after undergoing a right hemicolectomy for colon cancer, a 55-year-old woman has back pain and numbness and difficulty moving her legs. Her initial postoperative course was uncomplicated. Current medications include prophylactic subcutaneous heparin. Her temperature is 37.2C 98.9F, pulse is 100min, respirations are 18min, and blood pressure is 13090 mm Hg. Examination shows a well-positioned epidural catheter site without redness or swelling. There is weakness of the lower extremities. Deep tendon reflexes are absent in both lower extremities. Perineal sensation to pinprick is decreased. Her hemoglobin concentration is 11.2 gdL, leukocyte count is 6,000m3, and platelet count is 215,000mm3. Her erythrocyte sedimentation rate is 19 mmh. A T2-weighted MRI of the spine shows a 15-cm, hyperintense, epidural space-occupying lesion compressing the spinal cord at the level of L2L5 vertebrae. Which of the following is the most appropriate next step in treatment?? A: Observation, B: Perform surgical decompression, C: Perform CT-guided aspiration, D: Obtain lumbar puncture, E: Obtain blood culturesn,  <response>: Based on the information provided, this patient recently underwent a right hemicolectomy and now presents with back pain, numbness, weakness in the lower extremities, and decreased reflexes and sensation, indicating a spinal cord injury. An MRI shows an epidural compressive lesion at L2-L5. The main differential is an epidural hematoma vs epidural abscess. Key factors pointing towards a hematoma include the recent surgery, use of heparin, normal temperature, and normal inflammatory markers. The main concern is urgent decompression of the spinal cord before permanent damage occurs.Choice A of observation is incorrect, as urgent surgical decompression is indicated. Choice C of aspiration and choice D of lumbar puncture are not appropriate next steps. Choice E of blood cultures may be warranted to rule out infection but does not address the urgent need for cord decompression.B: Perform surgical decompression 