<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 59-year-old woman comes to the physician because of a 1-month history of episodic cough and shortness of breath. The cough is nonproductive and worsens when she climbs stairs and during the night. She has not had chest pain or palpitations. Eight weeks ago, she had fever, sore throat, and nasal congestion. She has a 10-year history of hypertension. She has smoked half a pack of cigarettes daily for 16 years. Her only medication is enalapril. Her pulse is 78min, respirations are 18min, and blood pressure is 14595 mm Hg. Pulse oximetry on room air shows an oxygen saturation of 96. Diffuse end-expiratory wheezes are heard on pulmonary auscultation. An x-ray of the chest shows no abnormalities. Spirometry shows an FEV1:FVC ratio of 65 and an FEV1 of 60. Which of the following is the most likely diagnosis?? A: Pneumonia, B: Gastroesophageal reflux disease, C: Side effect of medication, D: Asthma, E: Chronic bronchitis,  <response>: This is a clinical case question involving a 59-year-old woman with a 1-month history of cough and shortness of breath that worsens with exertion and at night. She has a history of a recent upper respiratory infection, hypertension, and smoking. On exam she has wheezing and spirometry shows obstructive lung disease. The episodic nature of symptoms, wheezing on exam, and obstructive spirometry make asthma the most likely diagnosis. Pneumonia would cause infiltrates on imaging. GERD and medication side effects are less likely given the episodic nature and wheezing. Chronic bronchitis could cause wheezing and obstruction but would not be as episodic.D: Asthma 