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': 'The zinc-oxide eugenol impression paste is used to enhance quality of: \nSelect and explain. \nA. Modeling compound impression, B. Reversible hydro-colloid impression, C. Alginate impressions, D. Wax impressions', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]