A Woman Asks the Nurse,"What Protects My Baby's Umbilical Cord

A woman asks the nurse,"What protects my baby's umbilical cord from being squashed while the baby's inside of me?" The nurse's best response is:

A) "Your baby's umbilical cord is surrounded by connective tissue called Wharton jelly, which prevents compression of the blood vessels and ensures continued nourishment of your baby."
B) "Your baby's umbilical floats around in blood anyway."
C) "You don't need to worry about things like that."
D) "The umbilical cord is a group of blood vessels that are very well protected by the placenta."