This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drugs, Subject name: Ophthalmology
Shortest acting mydriatic is? 
Select and explain. 
A. Tropicamide, B. Atropine, C. Phenylephrine, D. Hyoscine
A: Tropicamide
Answer: A: Tropicamide 
Explanation: ANSWER: (A) TropicamideREF: khurana 4th ed p. 68shortest acting mydriatic - TropicamideOnly mydriatic and not cycloplegic - phenylephrineUsed in children - Atropine