<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 64-year-old man presents to the emergency department with sudden onset of pleuritic chest pain and dyspnea on exertion. He has a history of lung cancer and is currently being treated with outpatient chemotherapy. His temperature is 98.9F 37.2C, blood pressure is 11164 mmHg, pulse is 130min, respirations are 25min, and oxygen saturation is 90 on room air. Initial laboratory values in the emergency department are seen below.Hemoglobin: 8.2 gdLHematocrit: 26Leukocyte count: 7,700mm3 with normal differentialPlatelet count: 157,000mm3A CT angiogram demonstrates a blood clot in the pulmonary vasculature. The patient is started on heparin and he is admitted to the ICU. Laboratory values 6 days later are shown below.Hemoglobin: 8.0 gdLHematocrit: 25Leukocyte count: 7,500mm3 with normal differentialPlatelet count: 22,000mm3Which of the following is the most appropriate next step in management?? A: Blood transfusion, B: No treatment changes needed, C: Platelet transfusion, D: Start warfarin, E: Stop heparin,  <response>: This is a question about the management of a patient with lung cancer who developed a pulmonary embolism and was started on heparin. After 6 days of heparin, the patients hemoglobin and hematocrit are stable but the platelet count has dropped significantly. The key findings here are:- Patient has lung cancer and developed a pulmonary embolism, now on heparin- Hemoglobin and hematocrit stable after 6 days of heparin - Platelet count dropped significantly after 6 days of heparinThis suggests the patient has developed heparin-induced thrombocytopenia HIT. The most appropriate next step would be to stop the heparin, as this is causing the low platelet count.E: Stop heparin 