Figure 5-3 in the Accompanying Figure, What Is the Role

Figure 5-3 In the accompanying figure, what is the role of the structures between the membranes?

A) They provide structure to plant cells.
B) They provide anchorage points between adjacent cells.
C) They allow passage of materials through intercellular spaces.
D) They prevent the passage of materials through intercellular spaces.
E) They allow the transport of small molecules and ions between adjacent cells.