This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
Which of the following action is ascribed to delta type of opioid receptors? 
Select and explain. 
A. Supraspinal analgesia, B. Respiratory depression, C. Euphoria, D. Reduced intenstinal motility
A: Supraspinal analgesia
Answer: A: Supraspinal analgesia 
Explanation: Ref: KDT 6/e p462 Both spinal as well as suprapinal analgesia is mediated by all three opioid receptors i.e.u,k. Other actions mentioned in the question are mainly mediated by m receptors.