This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Growth and development, Subject name: Pediatrics
[{'content': '"Cruising" is a developmental milestone attained at the age of: \nSelect and explain. \nA. 8 months, B. 10 months, C. 13 months, D. 15 months', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cruising is attained by 10-11 months "Cruising" is an action in which a child pulls to the standing position and then scuffles around holding onto a piece of furniture. Ref: Ghai Essentials Pediatrics 9th edition Pgno: 43', 'role': 'assistant'}]