Which of the following is accurate about the anatomy of the root?

a. The zone of cellular elongation represents an area where recently grown cells begin to matu and specialize.
b. None of the options listed here are correct.
c. The zone of cellular maturation contains older cells that are likely to complete the specialized development into tissue and develop secondary cell walls that are more stiff and rigid.
d. The zone of cellular division represents the area of primary growth because it contains the apical meristem, and as such is likely to have cells with primary cell walls.
e. All of the options listed here are correct.