Though plants, fungi and prokaryotes all have cell walls, we classify them under different taxonomic units.?

Which of the observations below comes closest to explaining the basis for placing these organisms in different taxa?





a. some have cell walls only to control osmotic balance


b. same closely resemble animals, which lack cell walls


c. some have cell walls only for protection from herbivores.


d. some have cell walls only for support


e. their cell walls are constricted from very different biochemicals.Though plants, fungi and prokaryotes all have cell walls, we classify them under different taxonomic units.?
e. The three organisms' cell walls evolved independently.