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': 'Bilateral consonants are ? \nSelect and explain. \nA. Pb9, B. PbMW, C. MW, D. TLMW', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., PbMW Pronounced or aiculated with both lips, as the consonants b, p, m, and w. Baby stas producing bilabial words by 4th month of age.", 'role': 'assistant'}]