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: Ophthalmology
A patient having glaucoma develops blepharoconjunctivitis after instilling some anti-glaucoma drug. Which of the following drug can me responsible for it: 
Select and explain. 
A. Timolol, B. Latanosprost, C. Dipiverine, D. Pilocarpine
A: Timolol
Answer: A: Timolol 
Explanation: Timolol