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': 'Which of the following is false about drugs given in urinary incontinence \nSelect and explain. \nA. Darifenacin is a selective M3 antagonist, B. Flavoxate, Oxybutynin, Tolterodine are  muscarine receptor blockers used to decrease detrusor muscle contraction, C. Tolterodine can be given as tansdermal patch, D. Trospium is a quartenery amine with no CNS side effects', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Oxybutynin can be given as transdermal patch, not Tolterodine.', 'role': 'assistant'}]