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: Forensic Medicine
[{'content': 'A bullet travelling in an irregular fashion instead of straight line is known as: \nSelect and explain. \nA. Yawning bullet, B. Tandem bullet, C. Ricochet bullet, D. Piggyback bullet', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A bullet travelling in an irregular fashion instead of nose on is known as yawning bullet. Ref: Parikh, 6th ed, page 4.26.', 'role': 'assistant'}]