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: Pathology
Bronchiectasis means .....................of bronchi - 
Select and explain. 
A. Inflammation, B. Dilatation, C. Cavitation, D. All
B: Dilatation
Answer: B: Dilatation 
Explanation: Ref:Textbook of pathology (Harsh mohan)6th edition, page no.484 BRONCHIECTASIS Bronchiectasis is defined as abnormal and irreversible dilatation of the bronchi and bronchioles (greater than 2 mm in diameter) developing secondary to inflammatory weakening of the bronchial walls. The most characteristic clinical manifestation of bronchiectasis is persistent cough with expectoration of copious amounts of foul-smelling, purulent sputum. Post-infectious cases commonly develop in childhood and in early adult life.