Answer:
The correct answer would be A) cell wall.
In a plant cell, the cell wall is the outermost layer mainly composed of cellulose. It provides protection, support, structure et cetera to the cell.
It provides mechanical support and strength to the cell and regulates the direction of cell growth.
It helps the cell in withstanding the turgor pressure and thus, helps in preventing the bursting of a plant cell in hypotonic solutions. In addition, it also prevents the shrinkage of the cell in hypertonic solutions.
It also protects the cells from invading pathogens such as viruses.
