<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 28-year-old patient presents to the hospital complaining of progressively worsening dyspnea and a dry cough. Radiographic imaging is shown below. Pulmonary function testing PFTs reveals a decreased FEV1 and FEV1FVC, but an increase TLC. The patient states that he does not smoke. Which of the following conditions is most consistent with the patients symptoms?? A: Chronic bronchitis, B: Alpha1-antitrypsin deficiency, C: Pneumothorax, D: Asthma, E: Hypersensitivity pneumonitis,  <response>: Based on the information provided in the question stem, the key findings are:- 28-year-old patient - Complaining of worsening dyspnea and dry cough- Radiographic imaging shows hyperinflation - PFTs show decreased FEV1 and FEV1FVC but increased TLC- Non-smokerThe decreased FEV1FVC and increased TLC indicate obstructive lung disease with air trapping, which narrows down the differential diagnosis. In a non-smoking young patient, the most likely cause would be alpha-1 antitrypsin deficiency, which is a genetic disorder that can cause panacinar emphysema and present at a young age. The other options are less consistent with the clinical presentation.B: Alpha1-antitrypsin deficiency 