Why is it important to recognize that an infant needs rescue breathing and that we need to deliver effective oxygenation?

A. An Infant's brain doesn't know how to breathe well yet, so our rescue breaths help train their brain what to do
B. Infants are comforted by mouth-to-mouth rescue breaths and this will help calm them down if scared
C. Infants are extremely sensitive to oxygenation and the lack of oxygen can quickly lead to cardiac arrest
D. Rescue breaths will help slow the heart rate down and comfort the child