Which of the Following Indicate Severely Impaired Oxygenation Requiring High

Multiple Choice

Which of the following indicate severely impaired oxygenation requiring high FIO₂s and positive end-expiratory pressure?
I.PaO₂-PaO₂ greater than 350 mm Hg on 100% O₂
II.VC less than 10 ml/kg
III.PaO₂/FIO₂ less than 200

A) I and II
B) I and III
C) II and III
D) I, II, and III