Answer :
The answer is A.
I am pretty sure this is correct. As the secondary cell wall is thicker then the first. But it contains cellulose which Helps to increase the rigidity of the cell wall.
I am pretty sure this is correct. As the secondary cell wall is thicker then the first. But it contains cellulose which Helps to increase the rigidity of the cell wall.
Answer:
a)Cellulose is the material used to keep the cell wall rigid.
Explanation: