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
[{'content': 'Empty spasodic agent for the treatment of intestinal colic: \nSelect and explain. \nA. Hyoscine., B. Dicyclomine., C. Propantheline., D. All of the above.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Other than these oxyphenonium and clidinium can also be used.', 'role': 'assistant'}]