<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 45-year-old obese man presents to his primary care provider for an annual physical. The patient states that he has noticed increased sleepiness during the day at work over the past 6 months in addition to difficulty concentrating and worsening memory. He denies recent weight loss, and is not sure if he snores because he sleeps by himself. His past medical history is significant for hypertension and type II diabetes. Vital signs are T 98.6 F, HR 75 bpm, BP 14090 mm Hg, RR 18min. Physical exam reveals a 350 pound man. Jugular venous distension is difficult to evaluate due to excess tissue in the neck. There is no peripheral edema. Lung exam is normal. Routine CBC shows WBC count of 5000 cellsml, platelet count of 350,000mcL, hemoglobin of 18 gmdL, and hematocrit of 54. What is the most likely cause of his abnormal lab results?? A: Cor pulmonale, B: Malignancy, C: Diuretic overuse, D: JAK2 mutation, E: Sleep apnea,  <response>: This is a question about a 45-year-old obese man with symptoms of daytime sleepiness, difficulty concentrating, worsening memory, hypertension, and type 2 diabetes. He has abnormal lab results showing a low WBC count, low platelet count, high hemoglobin, and high hematocrit. The key findings here are the patients obesity, symptoms of excessive daytime sleepiness, and abnormal CBC results. Obesity is a major risk factor for sleep apnea, which can cause daytime sleepiness. The abnormal CBC showing high RBC parameters hemoglobin and hematocrit can be seen in sleep apnea due to chronic hypoxemia leading to polycythemia. The other answer choices are less likely:- Cor pulmonale is right heart failure due to pulmonary hypertension, which would not cause these CBC abnormalities. - Malignancy could cause high RBC parameters but would also likely cause high WBC count rather than low.- Diuretic overuse could explain low WBC but not the high RBC parameters.- JAK2 mutation could cause high RBC parameters but is unlikely in this clinical scenario.E: Sleep apnea 