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
All are produced by la receptors except - 
Select and explain. 
A. Euphoria, B. Sedation, C. Dysphoria, D. Constipation
C: Dysphoria
Answer: C: Dysphoria 
Explanation: Ans. is 'c' i.e., Dysphoria