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': 'What should be the width or depth of beading of palatal major connector: \nSelect and explain. \nA. 0.5 mm, B. 1 mm, C. 1.5 mm, D. 2 mm', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]