The Mycorrhizae Found Interacting with the Roots of Land Plants

The mycorrhizae found interacting with the roots of land plants are

A) pathogens, feeding on plant tissue they have damaged with toxins.
B) parasites, draining sugar from the plant's vascular system.
C) saprophytes, stripping dead tissue from the root.
D) symbionts, facilitating the plant's uptake of minerals.
E) commensals, exploiting a benign environment, but neither helping nor harming the plant.