This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiration, Subject name: Pathology
Charcot-Leyden crystals and Curshmann's spirals are seen in: 
Select and explain. 
A. Bronchial asthma, B. Chronic bronchitis, C. Bronchiectasis, D. Emphysema
A: Bronchial asthma
Answer: A: Bronchial asthma 
Explanation: [A) (Bronchial asthma): Ref: 492-HM (492-Basicpathology 8th)* Charcot-Leyden crystals and curschmann's spirals are features of Br. Asthma* Charcot-Leyden crystals - sputum contains numerous eosinophils and diamond-shaped crystals derived from easinophils called charcot-leyeen crystals* Curschmann's spirals: - The mucus plugs contain normal or degenerated respiratory epithelium forming twistedstrips called curschmann s spirals 1 2 3 4 5* "Honey-combed appearance " seen in Bronchiectasis* "Reid-Index" shows histologic definition in chronic bronchitis