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: Pediatrics
[{'content': 'The following neonatal reflex disappears by what age \nSelect and explain. \nA. 5 months, B. 6 months, C. 4 months, D. 9 months', 'role': 'user'}, {'content': "Answer: B \nExplanation: This is Asymmetric tonic neck reflex (ATNR) which disappears by 6months\n\n\n\nReflex\nOnset\nFully developed\nDuration\n\n\n\n\nPalmar grasp\n\n\n28 weeks of gestation\n32 weeks of gestation\n2-3 months postnatal\n\n\n\n\nRooting reflex\xa0\n\n\n32 weeks of gestation\n34 weeks of gestation\nLeast prominent after 1 month\n\n\n\n\nMoro's reflex\n\n\n28 -32 weeks of gestation\n37 weeks of gestation\n5-6 months postnatal\n\n\n\n\nAsymmetric tonic nerve reflex\xa0\n\n\n35 weeks of gestation\n1 month postnatal\n6 - 7 months postnatal\n\n\n\n\nParachute reflex\n\n\n7 - 8 months postnatal\n10 - 11 months postnatal\nRemains throughout life.", 'role': 'assistant'}]