This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Charcot - Leyden crystals are derived from 
Select and explain. 
A. Eosinophils, B. Basophils, C. Bronchial goblet cells, D. Mast cells
A: Eosinophils
Answer: A: Eosinophils 
Explanation: None