The correct option is
A Blue green algae
Spirulina is a genus of multicellular blue-green microalgae. It has 2 species, viz.,
Arthrospira platensis and
Arthrospira maxima. Spirulina is the world's first superfood, and one of the most nutrient-rich foods on Earth. Fungi is a kingdom of heterotrophic organisms showing extracellular digestion. Bryophyte and pteridophyte are phyllum of kingdom Plantae.
Thus, the correct answer is option A.