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 drugs acts on trabecular mesh-work and affects the aqueous outflow \nSelect and explain. \nA. Timolol, B. Pilocarpine, C. Brimonidine, D. Brinzolamide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pilocarpine increases trabecular outflow by increasing ciliary tone. Timolol and Brinzolamide decreases the aqueous formation.\nBrimonidine act by augmenting uveoscleral outflow.', 'role': 'assistant'}]