Administration of Positive End Expiratory Pressure (PEEP) or Continuous Positive

Administration of positive end expiratory pressure (PEEP) or continuous positive airway pressure (CPAP) is associated with which of the following benefits?
1) Helps maintain open alveoli.
2) Helps with alveoli stability.
3) Helps maintain fluid-filled alveoli open.
4) Ensures surfactant-depleted alveoli remain closed.

A) 1 and 3 only
B) 1, 2, and 3 only
C) 3 and 4 only
D) 2, 3, and 4 only