The correct option is A Blue green algae
Blue green algae are prokaryotes and belong to kingdom Monera. Other algae belong to kingdom Plantae and have eukaryotic cells. Prokaryotic cells lack membrane-bound organelles like plastids and mitochondria. The meiotic cell division is characteristic of higher eukaryotic organisms which show alternation of generation in their life cycle. Such organisms have a haploid phase which alternates with a diploid phase in their life history. Thus, the correct answer is option A.