Stomatal movement is not affected by Temperature, CO2 concentration, Light, O2 concentration

The stomatal movement mainly depends on the following factors:
Light: stomata open in light and close in darkness. Light intensity also affects the stomatal movement. Stomata open in low intensity.
2. Temperature: Stomata can open at 30℃.
CO2 concentration: Stomata open at low concentration and close at high concentration.
Water availability: Underwater stress condition stomata get close due to ABA hormone. Whereas concentration of oxygen does not have a great impact on stomatal movement. Thus, the correct answer is option A.