Which of the following statements represents the most likely reason for an episiotomy in a normal delivery?

A. The tissue of the perineum is not sufficiently stretched to allow the head to deliver without creating a tear in the perineum.
B. Labor is going on too long, and an episiotomy will speed up the delivery.
C. A laceration will always occur during delivery when an episiotomy is not performed.
D. An episiotomy is necessary for a normal delivery.