This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Social and Language Milestones, Subject name: Pediatrics
[{'content': 'A baby with tripod position, bi dexterous approach, recognizes strangers and can spell out mono syllable by what age: \nSelect and explain. \nA. 7 months, B. 12 months, C. 9 months, D. 10 months', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Age of the baby- 7 months Baby can sit in tripod position by 6 months. Bi dexterous approach by 5th month. Monosyllables by 6th month. Stranger anxiety by 7th month', 'role': 'assistant'}]