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': 'Which of the following is true about grade 4 burns \nSelect and explain. \nA. Involves all layers of the skin, B. Involves the whole skin along with subcutaneous tissue, C. Includes electric burns, D. Involves the dermis paially', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer- B. Involves the whole skin along with subcutaneous tissue', 'role': 'assistant'}]