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 shows the phenomenon of vasomotor reversal of Dale after administration of an α adrenergic blocker ? 
Select and explain. 
A. Adrenaline, B. Noradrenaline, C. Isoprenaline, D. All of the above
A: Adrenaline
Answer: A: Adrenaline 
Explanation: None