<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 37-year-old woman comes to the physician because of irregular menses and generalized fatigue for the past 4 months. Menses previously occurred at regular 25- to 29-day intervals and lasted for 5 days but now occur at 45- to 60-day intervals. She has no history of serious illness and takes no medications. She is 155 cm 5 ft 1 in tall and weighs 89 kg 196 lb; BMI is 37 kgm2. Her temperature is 37C 98.6F, pulse is 90min, and blood pressure is 146100 mm Hg. Examination shows facial hair as well as comedones on the face and back. There are multiple ecchymotic patches on the trunk. Neurological examination shows weakness of the iliopsoas and biceps muscles bilaterally. Laboratory studies show:Hemoglobin 13.1 gdLLeukocyte count 13,500mm3Platelet count 510,000mm3SerumNa 145 mEqLK 3.3 mEqLCl- 100 mEqLGlucose 188 mgdLWhich of the following is the most likely diagnosis?? A: Cushing syndrome, B: Primary hyperaldosteronism, C: Pheochromocytoma, D: Polycystic ovarian syndrome, E: Hypothyroidism,  <response>: Based on the information provided in the question stem, the key findings are:- Irregular menses and fatigue in a 37-year-old woman- Menses that were previously regular now occur less frequently and for shorter duration - Weight gain with a BMI of 37 kgm2- Hypertension - Facial hair and comedones suggestive of hyperandrogenism- Ecchymotic patches suggestive of easy bruisability - Proximal muscle weakness - Elevated serum glucose- Normal sodium, potassium, chlorideThis constellation of symptoms and findings - menstrual irregularities, weight gain, hyperandrogenism, easy bruisability, proximal myopathy, and impaired glucose tolerance - are classic for Cushing syndrome. The other options can be ruled out:- Primary hyperaldosteronism: Would cause hypertension with hypokalemia. Potassium is normal here.- Pheochromocytoma: Would cause paroxysmal hypertension. Hypertension here is sustained. - Polycystic ovarian syndrome: Could explain menstrual irregularities and hyperandrogenism but not the other findings.- Hypothyroidism: Could explain fatigue and weight gain but not the hyperandrogenism or hyperglycemia.A: Cushing syndrome 