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: Surgery
[{'content': 'Opening of mental foramen is directed in: \nSelect and explain. \nA. Forward and medial direction., B. Forward and lateral direction., C. Backward and medial direction., D. Backward and lateral direction', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]