The lab demonstrated an experiment where the volunteer exhaled into a basic solution with a pH indicator. How did the expired air affect the solution?

It decreased the pH of the solution as it increased the amount of bicarbonate

There was no change.

It decreased the pH of the solution as it increases CO2 in the solution

It increased the pH of the solution as it increases CO2 in the solution

It increased the pH of the solution as it increased the amount of bicarbonate