Final answer:
During a precipitous birth, gentle pressure should be applied to the fetal head and towards the perineum to prevent complications like the umbilical cord from popping out. so option A is the correct option.
Step-by-step explanation:
In the context of a precipitous birth, where birth happens rapidly and with little warning, the correct action would be to apply gentle pressure to the exposed fetal head, and toward the perineum to control delivery and prevent the umbilical cord from popping out. This helps in managing the rapid delivery and ensures that both the baby and the mother are safe from potential complications like umbilical cord prolapse or excessive perineal tearing.