The correct option is A Microtubules
Dictyosomes are the set of flattened membranes in a Golgi body, resembling a stack of plates. Microtubules transport the cell wall material from dictyosome. Microtubules are very important in a number of cellular processes. They are involved in maintaining the structure of the cell and together with microfilaments and intermediate filaments, they form the cytoskeleton. Microtubule ends are often localized to particular structures which transport cell wall material.