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: Pharmacology
Which of the following drugs prevents the release of leukotrienes and histamine from mast cells ? 
Select and explain. 
A. Zileuton, B. Fexofenadine, C. Nedocromil, D. Tiotropium
C: Nedocromil
Answer: C: Nedocromil 
Explanation: None