The correct option is A Plasmodium
1. Plasmodium: Plasmodium, commonly known as the malarial parasite, is a large genus of parasitic protozoa. 2. Saccharomyces cerevisiae: Saccharomyces cerevisiae is a species of yeast and is a fungus. 3. Orthomyxoviridae : Orthomyxoviridae viruses are one of the only RNA viruses that replicate in the nucleus. 4. Salmonella: Salmonella is a genus of rod-shaped (bacillus) bacteria of the Enterobacteriaceae family. Salmonellae are found worldwide in both cold-blooded and warm-blooded animals, and in the environment.