The Difference Between Septate Hyphae and Nonseptate Hyphae Is

The difference between septate hyphae and nonseptate hyphae is

A) a difference in haploid and diploid cells.
B) a distinction between saprotrophic fungi and parasitic or disease-causing fungi.
C) a classification trait that separates basidiomycotes from ascomycotes.
D) a distinction between plasmodial masses with many nuclei and nonliving zygospores.
E) determined by whether the hyphae have cross walls or lack cross walls.