Which Statement by the Nurse When Explaining the Purpose of Positive

Which statement by the nurse when explaining the purpose of positive end-expiratory pressure (PEEP) to the family members of a patient with ARDS is correct?

A) "PEEP will prevent fibrosis of the lung from occurring."
B) "PEEP will push more air into the lungs during inhalation."
C) "PEEP allows the ventilator to deliver 100% oxygen to the lungs."
D) "PEEP prevents the lung air sacs from collapsing during exhalation."