Identify the statement that correctly describes ventilation-perfusion matching in the lungs of a healthy individual in the upright posture.
A. alveoli at apex overperfused
B. alveoli at apex underventilated
C. alveoli at base overperfused
D. alveoli at base overventilated
E. matching unaffected by gravity
Ans: C. alveoli at base overperfused
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