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
In an animal model, the phenomenon of vasomotor reversal of dale can be demonstrated by: 
Select and explain. 
A. Stimulation of alpha-1 followed by stimulation of beta-2, B. Block of alpha-1 followed by stimulation of beta-2, C. Stimulation of alpha-1 followed by block of beta-2, D. Stimulation of beta-1 receptor followed by block of beta-2 receptor
B: Block of alpha-1 followed by stimulation of beta-2
Answer: B: Block of alpha-1 followed by stimulation of beta-2 
Explanation: Answer- B. Block of alpha-1 followed by stimulation of beta-2In an animal model, the phenomenon of vasomotor reversal of dale can be demonstrated hy block of alpha-l followed by stimulation of beta-2.