After light triggers the activation proton pumps, what happens next in the leaf?

A) Chloride ions are pumped out of the guard cells.
B) Hydrogen ions are actively transported out of guard cells.
C) Potassium ions diffuse into guard cells.
D) Chloride ions diffuse out of guard cells.
E) Water moves by osmosis into guard cells.

Proton Pumps

Membrane-bound enzymes that actively transport protons (H+) across a membrane, generating an electrochemical gradient used for energy.

Chloride Ions

Negatively charged chlorine atoms that are important for maintaining fluid balance, transmitting nerve impulses, and regulating acid levels in the body.

Osmosis

The movement of water molecules through a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration, aiming to equalize solute concentrations on both sides.