<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 4-year-old girl is brought to the pediatricians office by her parents with a complaint of foul-smelling discharge from one side of her nose for the past 2 weeks. There is no history of trauma to the nose and she was completely fine during her well-child visit last month. She was born at 39 weeks gestation via spontaneous vaginal delivery. She is up to date on all vaccines and is meeting all developmental milestones. Her vital signs are within normal limits. Examination of the nose reveals a mucoid discharge oozing out from the left nostril. The girl panics when the physician tries to use a nasal speculum. Palpation over the facial bones does not reveal any tenderness. An X-ray image of the paranasal sinuses shows no abnormality. Which of the following is the most likely cause of this condition?? A: Nasal foreign body, B: Bilateral maxillary sinusitis, C: Nasal polyp, D: Septal hematoma, E: Nasal tumor,  <response>: This is a clinical vignette about a 4-year-old girl with unilateral foul-smelling nasal discharge of 2 weeks duration. Important points from the history include no history of trauma, recent normal well-child visit, full-term birth, up-to-date immunizations, meeting milestones, and vital signs within normal limits. On exam, she has mucoid discharge from the left nostril and panics with nasal speculum exam. Imaging shows no sinus abnormality. The unilateral nature makes bilateral maxillary sinusitis unlikely. There is no evidence of mass lesion or septal hematoma on exam or imaging. The history and exam are most consistent with a retained nasal foreign body, which can cause unilateral foul discharge without systemic symptoms in a child.A: Nasal foreign body 