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: Dental
[{'content': 'Benzoin methyl ether in a polymer indicates that they may be cured in the presence of: \nSelect and explain. \nA. UV light, B. Visible light, C. Infrared light, D. Diketone', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Homopolymers of 4-acryloyloxybenzoin methyl ether (ABME) and 4-acryloyloxy-α-methylbenzoin methyl ether (AMBE)  as well as copolymers of AMBE with (-)-menthyl acrylate (MtA) and with different N,N-dialkylaminoethyl acrylates have been employed in the photoinitiated polymerization and crosslinking of a standard acrylic formulation for u.v. clear curable coatings.', 'role': 'assistant'}]