Indicate the statement that describes respiratory function in a highly trained athlete at maximal exercise.
A. Increased residual volume; increased respiratory rate; decreased alveolar ventilation
B. Unchanged minute ventilation; increased respiratory rate; decreased vital capacity
C. Increased tidal volume; unchanged minute ventilation; unchanged alveolar ventilation
D. Increased tidal volume; increased minute ventilation; increased alveolar ventilation
E. Increased minute ventilation; increased alveolar ventilation; unchanged tidal volume
Answer: D
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