When Is Ventilator Dependence Likely to Occur

When is ventilator dependence likely to occur?
I.when ventilatory capacity exceeds demand
II.when arterial hypoxemia is present
III.when the patient is malnourished
IV.when the cardiovascular system is unstable

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