Glomeromycota Are Obligate Mutualists of Plants

Glomeromycota are obligate mutualists of plants:

A) that form fruiting bodies, such as basidiomycetes
B) and are considered pathogenic to more than 90% of all land plants
C) that form arbuscular mycorrhizae, in which the fungal filaments penetrate plant cell walls and the cytoplasmic membrane to establish symbiosis
D) that receive sugars from plants and provide ammonium and phosphate to plants
E) that form periarbuscular space within the fungi's own cell wall