This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neonatal sepsis, Subject name: Pediatrics
[{'content': 'Arrange the following steps of handwashing, before entering a NICU, in proper sequence: \nSelect and explain. \nA. 1 - 2 - 3 - 4, B. 1 - 4 - 3 - 2, C. 4 - 3 - 2 - 1, D. 3 -2 - 4 -1', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Steps of handwashing : 1 - 4 - 3 - 2', 'role': 'assistant'}]