When a Prolapsed Cord Is Identified,which of These Nursing Actions

When a prolapsed cord is identified,which of these nursing actions assumes priority?

A) Assist client into a knee-chest position or modified Sims' position.
B) Attempt to replace the cord into the uterus with a sterile gloved hand.
C) Cover the cord with a sterile towel,and start oxygen via mask at 10 L per minute.
D) Insert two fingers of a sterile gloved hand into the vagina,and put pressure on the presenting part to lift it off the cord.