This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Impoant Motor Milestones, Subject name: Pediatrics
[{'content': 'When can a child begin to take a biscuit to his mouth? \nSelect and explain. \nA. 2 months, B. 4 months, C. 6 months, D. 9 months', 'role': 'user'}, {'content': 'Answer: C \nExplanation: By 6 months, a child can begin to take a biscuit to his mouth. By 12 months, he can try to feed self with a cup but spills some of contents. By 15 months, he can drink from cup without much spilling By 18 months, he can feed himself well with a spoon', 'role': 'assistant'}]