If a Person Suffers a Spinal Cord Injury in Which

If a person suffers a spinal cord injury in which the phrenic nerve is no longer functioning,what is their greatest concern?

A) If the phrenic nerve is not functioning the diaphragm will not contract which is responsible for decreasing the pressure in the lungs.This is what will cause atmospheric air to rush into the lungs.
B) If the phrenic nerve is not functioning the intercostal muscles will not contract which is responsible for decreasing the pressure in the lungs.This is what will cause atmospheric air to rush into the lungs.
C) If the phrenic nerve is not functioning the diaphragm will not contract which is responsible for increasing the pressure in the lungs.This is what will cause atmospheric air to rush out of the lungs.
D) If the phrenic nerve is not functioning the intercostal muscles will not contract which is responsible for increasing the pressure in the lungs.This is what will cause atmospheric air to rush into the lungs.
E) If the phrenic nerve is not functioning the intercostal muscles will not contract which is responsible for increasing the pressure in the lungs.This is what will cause atmospheric air to rush out of the lungs.