This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Malnutrition, Subject name: Pediatrics
[{'content': 'Which of the following indicate secondary failure to respond in a child with severe malnutrition? \nSelect and explain. \nA. Failure to regain appetite by day 4, B. Presence of edema on day 10, C. Failure to gain at least 5g/kg/day for 3 consecutive days during the rehabilitation phase, D. Failure to gain at least 5 g/kg/day by day 10', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Primary failure to respond is indicated by- Failure to regain appetite by day 4 Failure to sta losing edema by day 4 Presence of edema on day 10 Failure to gain at least 5 g/kg/day by day 10 Secondary failure to respond is indicated by- Failure to gain at least 5g/kg/day for consecutive days during rehabilitation phase', 'role': 'assistant'}]