When Brenda Had Her First Child, a Cesarean Section Was

When Brenda had her first child, a cesarean section was performed, because the child could not come through the birth canal. Now, during her second pregnancy, she intends to attempt a vaginal delivery. What are her chances of a successful delivery?

A) 20 percent
B) 50 to 70 percent
C) 60 to 80 percent
D) 95 percent