<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 2-month-old girl is admitted to the hospital because of a 1-day history of fever and difficulty breathing. She has also had nasal congestion for 2 days. She was born at 28 weeks gestation and weighed 1105 g 2 lb 7 oz; she currently weighs 2118 g 4 lb 11 oz. Her neonatal course was complicated by respiratory distress syndrome. She required supplemental oxygen for 36 days following birth. She was diagnosed with bronchopulmonary dysplasia 3 weeks ago. The infant missed an appointment with the pediatrician 2 weeks ago. Her only medication is vitamin D drops. She appears lethargic. Her temperature is 38.6C 101.4F, pulse is 160min, respirations are 55min, and blood pressure is 8045 mm Hg. Pulse oximetry on room air shows an oxygen saturation of 87. Physical examination shows moderate subcostal retractions. Wheezing is heard on auscultation of the chest. Her hemoglobin concentration is 10.5 gdL, leukocyte count is 13,000mm3, and platelet count is 345,000mm3. Mechanic ventilatory support is initiated. After 4 days in the pediatric intensive care unit, the patient dies. Administration of which of the following is most likely to have prevented this patients outcome?? A: Ribavirin, B: Postnatal glucocorticoid, C: Ceftriaxone, D: Respiratory syncytial virus immune globulin, E: Palivizumab,  <response>: This is a clinical vignette about a 2-month-old premature infant girl with a history of bronchopulmonary dysplasia who presents with fever, respiratory distress, and wheezing. She requires mechanical ventilation but unfortunately dies after 4 days in the PICU. Based on the details provided, this is most likely a case of respiratory syncytial virus RSV infection in an immunocompromised infant. RSV is a common cause of bronchiolitis and pneumonia in infants. Premature infants and those with chronic lung disease are at highest risk for severe RSV infection. The question asks which medication would most likely have prevented the poor outcome in this patient. Ribavirin may be used to treat RSV but would not have prevented infection. Antibiotics like ceftriaxone treat bacterial infections but not viral illnesses like RSV. Glucocorticoids may worsen outcomes in RSV. The correct answer is palivizumab, a monoclonal antibody given to high-risk infants to prevent RSV infection.E: Palivizumab 