A Newborn with Which of the Following Clinical Manifestations Should

A newborn with which of the following clinical manifestations should receive nasal CPAP?

A) Substernal retractions,PaCO₂ = 65 mm Hg,PaO₂ = 48 mm Hg,F_IO₂ = 0.4.
B) Tachypnea,nasal flaring,PaCO₂ = 50 mm Hg,PaO₂ = 50 mm Hg,F_IO₂ = 0.6.
C) Grunting,substernal retractions,pH = 7.20,PaCO₂ = 70 mm Hg,PaO₂ = 40 mm Hg,F_IO₂ = 0.7.
D) Tachypnea,pale skin,pH = 7.32,PaCO₂ = 45 mm Hg,PaO₂ = 75 mm Hg,F_IO₂ = 0.21.