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
Drug of choice for treating anaphylaxis is : 
Select and explain. 
A. Adrenaline, B. Corticosteroid, C. Antihistaminic, D. Sodium cromoglycate
A: Adrenaline
Answer: A: Adrenaline 
Explanation: None