Regarding the Relationships Between the Rates of Oxygen Consumption/carbon Dioxide

Regarding the relationships between the rates of oxygen consumption/carbon dioxide production and alveolar ventilation, which of these statements is TRUE?

A) Increased ventilation without a similar increase in metabolism is called hypoventilation.
B) In hypoventilation, alveolar P_CO2 decreases below resting levels.
C) In hyperventilation, alveolar P_CO2 can decrease to zero.
D) A decrease in metabolism without a similar decrease in alveolar ventilation would result in hyperventilation.
E) An increase in ventilation with a matching increase in metabolism is called hyperventilation.