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: Ophthalmology
[{'content': 'In a worker engaged in stone breaking with a chisel and hammer, the most common foreign body which can be lodged in his eye is: \nSelect and explain. \nA. Stone paicle, B. Paicle from the chisel, C. Piece from the hammer, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Paicle from the chisel', 'role': 'assistant'}]