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
Arrange the following steps of handwashing, before entering a NICU, in proper sequence: 
Select and explain. 
A. 1 - 2 - 3 - 4, B. 1 - 4 - 3 - 2, C. 4 - 3 - 2 - 1, D. 3 -2 - 4 -1
B: 1 - 4 - 3 - 2
Answer: B: 1 - 4 - 3 - 2 
Explanation: Steps of handwashing : 1 - 4 - 3 - 2