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
During neonatal resuscitation of a Spontaneously breathing preterm baby of 30 weeks, who has some amount of Laboured breathing, Oxygen delivery can be done by 
Select and explain. 
A. Endotracheal intubation, B. Laryngeal mask, C. CPAP using T-Pieces, D. Self inflating bags
C: CPAP using T-Pieces
Answer: C: CPAP using T-Pieces 
Explanation: T - piece can deliver PIP / PEEP - 15/5 cm H2O pressure which can be provided via CPAP.
In preterm < 32 weeks self inflating bags are avoided as they provide uncontrolled tidal volume which cause Barotrauma.