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: Anaesthesia
Following is false regarding epidural opioids 
Select and explain. 
A. Epidural opioids cause respiratory depression, B. Epidural opioids don’t cause motor block, C. Epidural opioids injection need to be given in repeated doses, D. Epidural opioids cause no sympathetic blockade.
C: Epidural opioids injection need to be given in repeated doses
Answer: C: Epidural opioids injection need to be given in repeated doses 
Explanation: Epidural opioids have long lasting effect. So there is no need to give frequent injections.