<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 67-year-old man comes to the physician because of numbness and burning sensation of his legs for the past week. He also complains that his stools have been larger and rougher than usual. He has non-Hodgkin lymphoma and is currently receiving chemotherapy with prednisone, vincristine, rituximab, cyclophosphamide, and doxorubicin. He has received 4 cycles of chemotherapy, and his last chemotherapy cycle was 2 weeks ago. His temperature is 37.1C 98.8F, pulse is 89min, and blood pressure is 12280 mm Hg. Examination shows decreased muscle strength in the distal muscles of the lower extremities. Ankle jerk is 1 bilaterally and knee reflex is 2 bilaterally. Sensation to pain, vibration, and position is decreased over the lower extremities. Serum concentrations of glucose, creatinine, electrolytes, and calcium are within the reference range. Which of the following is the most likely cause of this patients symptoms?? A: Adverse effect of vincristine, B: Spinal cord compression, C: Paraneoplastic autoantibodies, D: Guillain-Barré syndrome, E: CharcotMarieTooth disease,  <response>: This is a clinical vignette about a 67-year-old man with numbness and burning sensation in his legs as well as larger, rougher stools. He has non-Hodgkin lymphoma and is currently undergoing chemotherapy. The symptoms started 1 week ago, which was 2 weeks after his last chemotherapy cycle. On exam he has decreased strength, reflexes, and sensation in his lower extremities. Based on the timeline, his symptoms started after chemotherapy. Chemotherapy drugs can cause peripheral neuropathy. Vincristine in particular is known to cause peripheral neuropathy. The decreased reflexes and sensation in his legs are consistent with neuropathy. Therefore, the most likely cause of his symptoms is an adverse effect of the vincristine he is receiving as part of his chemotherapy regimen.A: Adverse effect of vincristine 