Answer:
Option 1, cell wall
Explanation:
Cell wall is an outer covering of the cell that is responsible for giving shape and support to the cell. A cell wall is both tough and flexible at the same time in order to protect the cell wall from various losses. It also regulates the transmission of material in and out of the cell through a semipermeable membrane.
A cell wall in plant shape is made up of cellulose, hemi-cellulose and pectin which provide strength and rigidity to the cell.
hence, option 1 is correct
