When Acute Ventilatory Failure Is Present, Which of the Following

When acute ventilatory failure is present, which of the following would be true?

A) PCO₂ above normal range, pH below normal range, HCO₃- within normal range
B) PCO₂ above normal range, pH within normal range, HCO₃ within normal range
C) PCO₂ above normal, pH within normal range, HCO₃ below normal range
D) PCO₂ above normal range, pH below normal range, HCO₃-above normal range