<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 66-year-old man is brought to the emergency department by his daughter because of 3 days of fever, chills, cough, and shortness of breath. The cough is productive of yellow sputum. His symptoms have not improved with rest and guaifenesin. His past medical history is significant for hypertension, for which he takes hydrochlorothiazide. He has a 30-pack-year history of smoking. His temperature is 38.9 C 102.0 F, blood pressure 8856 mm Hg, and heart rate 105min. Following resuscitation with normal saline, his blood pressure improves to 11070 mm Hg. His arterial blood gas is as follows:Blood pH 7.52, PaO2 74 mm Hg, PaCO2 28 mm Hg, and HCO3- 21 mEqL.Which of the following acid-base disturbances best characterizes this patients condition?? A: Normal acid-base status, B: Metabolic acidosis, C: Metabolic alkalosis, D: Respiratory acidosis, E: Respiratory alkalosis,  <response>: This is a question about acid-base disturbances. Based on the information provided in the stem, the key findings are:- Fever, chills, cough, shortness of breath - suggests respiratory infection- Productive cough with yellow sputum - suggests bacterial infection- Arterial blood gas shows: - Elevated pH of 7.52 - alkalemia - Low PaCO2 of 28 mmHg - hypocapnia- Respiratory rate is increased to 105minThe elevated pH along with hypocapnia indicates that this patient has primary respiratory alkalosis. The respiratory infection has likely triggered increased respiratory rate and hyperventilation, blowing off CO2 and causing the alkalemia. The other answer choices can be ruled out:- Normal acid-base status - pH is elevated, not normal- Metabolic acidosis - no indication of metabolic acidosis - Metabolic alkalosis - no indication of metabolic alkalosis- Respiratory acidosis - arterial pH is elevated, not reduced as would be seen in respiratory acidosis.E: Respiratory alkalosis 