<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 5-year-old girl is brought to the physician because of a 2-day history of redness and foreign body sensation in both eyes. She has not had vision loss. Her mother reports that she has also had violent coughing spells followed by a high-pitched inspiratory sound during this time. For the past week, she has had low-grade fevers and a runny nose. Her only vaccinations were received at birth. Her temperature is 37.7C 99.9F. Examination shows conjunctival hemorrhage and petechiae. Oropharyngeal examination shows no abnormalities. Which of the following is the most appropriate pharmacotherapy?? A: Topical azithromycin, B: Oral azithromycin, C: Artificial tears, D: Intramuscular ceftriaxone, E: Topical tobramycin,  <response>: This is a medical question asking about the most appropriate pharmacotherapy for a 5-year-old girl with redness and foreign body sensation in her eyes, as well as violent coughing spells and inspiratory sounds, low-grade fevers, runny nose, conjunctival hemorrhage, and petechiae. Based on the symptoms described, this appears to be a case of pertussis whooping cough. The violent coughing spells followed by a high-pitched inspiratory sound are characteristic of pertussis. The additional symptoms of conjunctival hemorrhage and petechiae point to increased intrathoracic pressure from the severe coughing. Pertussis is a bacterial infection caused by Bordetella pertussis. The most appropriate pharmacotherapy would be an antibiotic that covers this organism. Of the choices provided, oral azithromycin would be the best option to treat the underlying bacterial infection. Topical medications for the eyes and intramuscular ceftriaxone would not treat the root cause.B: Oral azithromycin 