This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid and electrolytes, Subject name: Pediatrics
[{'content': 'Which of the following is sign of severe Dehydration in a child \nSelect and explain. \nA. Lethargy, B. Irritability, C. Increased duration of skin pinch, D. Suken eyes', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Sunken eyes, mouth and tongue very dry , condition lethargy ,skin pinch goes back very slowly The patient has 2 / more signs there is severe dehydration Ref: Ghai pediatrics eighth edition pg no 293', 'role': 'assistant'}]