Answer: OPTION A the buildup of CO2 in the blood and csf
OPTION B the demand for oxygen
Step-by-step explanation:
The high concentration of carbon dioxide levels in the blood and in the cerebrospinal fluid. Also the low oxygen levels stimulates the respiratory center of the brain to trigger the newborn to take the breath. The first birth initiate within the 10 seconds of the birth after the event when mucus is aspirated out from the child nose and mouth.