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': 'In serial extraction procedure if maxillary 1st premolar is extracted then maxillary canine erupts in direction \nSelect and explain. \nA. Downward, B. Downward-backward, C. Downward-forward, D. Forward', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]