This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Preoperative assessment and monitoring in anaesthesia, Subject name: Anaesthesia
A non ventilated preterm baby in incubator is under observation. Which is the best way to monitor the baby's breathing and detect apnea 
Select and explain. 
A. Canography, B. Impedence pulmonometry, C. Chest movement monitoring, D. Infrared end Tidal CO2 measurement
B: Impedence pulmonometry
Answer: B: Impedence pulmonometry 
Explanation: None