Among the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?

Biofertilizers are organisms that enrich the nutrient quality of the soil.Rhizobium forms symbiotic associations with leguminous plants and fixes atmospheric nitrogen.Cyanobacteria (like Anabaena, Nostoc) are autotrophic microbes that fix nitrogen in aquatic and terrestrial environments.Aspergillus and Rhizopus are fungi (saprophytic).