When the Level of Blood Flow Is Not Ideally Matched

Multiple Choice

When the level of blood flow is not ideally matched with the amount of airflow in a localized area of lung tissue

A) autoregulatory mechanisms are invoked.
B) the autonomic nervous system couples the events more ideally.
C) if airflow is low and blood flow to high, arteriolar vasoconstriction occurs.
D) both (a) and (b) above.
E) both (a) and (c) above.