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
Tiotropium is contra-indicated in: 
Select and explain. 
A. Bronchial asthma., B. Urinary retention., C. Hypertension., D. All of the above.
B: Urinary retention.
Answer: B: Urinary retention. 
Explanation: Antimuscarinic drugs are contraindicated in glaucoma and BHP(urinary retention)