Hyperventilation Can Create the Potential for Blood PH to Rise

Multiple Choice

Hyperventilation can create the potential for blood pH to rise to a harmful level. Why are hyperventilating individuals suffering from panic attacks advised to breathe in and out from within a paper bag?

A) the bag increases the air pressure, allowing more hydrogen ions to dissolve in the blood
B) the additional CO₂ combines with water to produce carbonic acid, which, in turn dissociates to bicarbonate and protons, thereby lowering pH
C) the additional CO₂ combines with water to produce bicarbonate, which, in turn dissociates to carbonic acid and protons, thereby lowering pH
D) the additional CO₂ combines with water to produce carbonic acid, which, in turn dissociates to bicarbonate and protons, thereby raising pH