<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 10-year-old child presents to your office with a chronic cough. His mother states that he has had a cough for the past two weeks that is non-productive along with low fevers of 100.5 F as measured by an oral thermometer. The mother denies any other medical history and states that he has been around one other friend who also has had this cough for many weeks. The patients vitals are within normal limits with the exception of his temperature of 100.7 F. His chest radiograph demonstrated diffuse interstitial infiltrates. Which organism is most likely causing his pneumonia?? A: Mycoplasma pneumoniae, B: Staphylococcus aureus, C: Streptococcus pneumoniae, D: Pneumocystis jiroveci, E: Streptococcus agalactiae,  <response>: Based on the information provided in the question stem, this appears to be a case of atypical pneumonia in a child. Key findings include a chronic, non-productive cough for 2 weeks, low-grade fevers, and diffuse interstitial infiltrates on chest x-ray. Mycoplasma pneumoniae is a common cause of atypical pneumonia and often presents with a prolonged, dry cough along with systemic symptoms like fever. Staphylococcus aureus, Streptococcus pneumoniae, and Streptococcus agalactiae more typically cause acute bacterial pneumonias. Pneumocystis jiroveci tends to occur in immunocompromised patients.Therefore, based on the subacute presentation and chest x-ray findings, Mycoplasma pneumoniae is the most likely organism causing this childs pneumonia.A: Mycoplasma pneumoniae 