Which of the following statement are true regarding asthma?

Sputum or bronchoalveolar lavage specimen findings - Curschmann spirals (extrusion of mucus plugs from subepithelial mucous gland ducts or bronchioles). Numerous eosinophils and Charcot-Leyden crystals; the latter are composed of an eosinophil protein called galectin-10. Creola bodies The other characteristic histologic findings of asthma, collectively called "airway remodeling".