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': 'Correlation of 1.1 means? \nSelect and explain. \nA. Computational error, B. Positive strong association, C. Weak association, D. Mild association', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]