<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A previously healthy 61-year-old man comes to the physician because of a 6-month history of morning headaches. He also has fatigue and trouble concentrating on his daily tasks at work. He sleeps for 8 hours every night; his wife reports that he sometimes stops breathing for a few seconds while sleeping. His pulse is 71min and blood pressure is 15896 mm Hg. He is 178 cm 5 ft 10 in tall and weighs 100 kg 220 lb; BMI is 31.6 kgm2 . Which of the following is the most likely cause of this patients hypertension?? A: Nocturnal upper airway obstruction, B: Hypophyseal neoplasm, C: Hypersecretion of aldosterone, D: Overproduction of cortisol, E: Proliferation of adrenal chromaffin cells,  <response>: Based on the information provided in the question stem, the key findings are:- 61-year-old man with 6-month history of morning headaches, fatigue, and trouble concentrating - Wife reports he stops breathing during sleep sometimes- Has hypertension BP 15896 mm Hg- Obese BMI 31.6 kgm2The history of morning headaches, fatigue, trouble concentrating, and witnessed apneic episodes during sleep point to a likely diagnosis of obstructive sleep apnea. This is further supported by his obesity. Obstructive sleep apnea is a known cause of hypertension due to nocturnal hypoxemia leading to sympathetic activation.Of the choices provided, Nocturnal upper airway obstruction best matches with obstructive sleep apnea as the most likely cause of his hypertension. The other choices are less likely based on the clinical information provided.A: Nocturnal upper airway obstruction 