This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': 'Bronchiectasis sicca is seen with \nSelect and explain. \nA. TB, B. Peusis, C. Cystic fibrosis, D. Pneumonia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Bronchiectasis sicca is a dry bronchiectasis seen in tuberculosis Bronchiectasis sicca or dry bronchiectasis is a very rare condition in which there are all the features of bronchiectasis except for the absence of copious amount of sputum which is usually a hall mark of bronchiectasis Dry bronchiectasis is rare condition in which abnormal dilataion of trachea bronchial tree Ref Davidson 23rd edition pg 586', 'role': 'assistant'}]