This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New born infants, Subject name: Pediatrics
[{'content': 'When do you initiate chest compressions in a newborn resuscitation? \nSelect and explain. \nA. Hea rate below 60, B. Hea rate below 100, C. Gasping, D. Persistent cyanosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref: Nelson; 20th edition; Page no: 845', 'role': 'assistant'}]