In Arbuscular Mycorrhizae the Fungal Hyphae

In arbuscular mycorrhizae the fungal hyphae

A) enter the root and penetrate the cell walls of the root cells.
B) form treelike growths on the outsides of plant roots.
C) form a flat covering around the outside of a plant root.
D) cause plant roots to become stunted and malformed.
E) invade the spaces between the individual cells of the plant root.