A Pilot Is Flying a Commercial, Pressurized (730 Mm Hg)

A pilot is flying a commercial, pressurized (730 mm Hg) airplane at 30,000 feet (barometric pressure of 226 mm Hg) . If the pilot's body temperature is normal and the alveolar pO₂ is 90 mm Hg, which of the following is true?

A) Arterial PCO₂ is 40 mm Hg
B) Alveolar ventilation will be increased
C) Arterial pH will be 7.6
D) Alveolar PCO₂ will be 45 mm Hg
E) Pilot will be polycythemic