![Which of the following facilitates the opening of stomatal aperture?](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Which-of-the-following-facilitates-the-opening-of-stomatal-aperture.jpg)
Which of the following facilitates the opening of stomatal aperture?
Option 1 : Contraction of outer wall of guard cells.
Option 2 : Radial orientation of cellulose microfibrils in the cell wall of guard cells.
Option 3 : Decrease in turgidity of guard cells.
Option 4 : Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells.