An example of endomycorrhiza is Rhizobium, Glomus, Agaricus, Nostoc?

The symbiotic association of a fungus with the roots of a higher plant is called mycorrhiza. Endomycorrhiza is a type of mycorrhiza in which a system of hyphae grows near and even penetrates the roots of vascular plants. eg. Glomus. Glomus is a genus of arbuscular mycorrhizal fungi. Species belonging to genus Glomus form a symbiotic relationship with plant roots. Thus, option C is the correct answer.