<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:An 8-year-old boy is brought to the emergency department because of shortness of breath and dry cough for 2 days. His symptoms began after he helped his father clean the basement. He is allergic to shellfish. Respirations are 26min. Physical examination shows diffuse end-expiratory wheezing and decreased inspiratory-to-expiratory ratio. This patients symptoms are most likely being caused by inflammation of which of the following structures?? A: Pleural cavity, B: Alveoli, C: Respiratory bronchioles, D: Distal trachea, E: Terminal bronchioles,  <response>: This is a clinical vignette about an 8-year-old boy with shortness of breath and dry cough after cleaning a basement. He has a history of shellfish allergy. On exam he has wheezing, increased respiratory rate, and decreased I:E ratio. The question asks which anatomical structure is most likely inflamed to cause his symptoms. Based on the wheezing and decreased I:E ratio, this points towards inflammation of the smaller airways. The alveoli and pleural cavity are less likely given the clinical picture. The distal trachea may cause different symptoms like stridor. Therefore, the most likely inflamed structure causing his symptoms is the terminal bronchioles.E: Terminal bronchioles 