The correct answer is option 2: Platyhelminthes.

Platyhelminthes is a phylum that includes flatworms, such as tapeworms. Tapeworms are parasitic worms that belong to the genus Taenia. They have a long, flat body structure with segments called proglottids. These worms typically infest the intestines of their host, where they absorb nutrients.

Fasciola, commonly known as the liver fluke, is also a member of the phylum Platyhelminthes. Liver flukes are parasitic flatworms that affect the liver and bile ducts of mammals, including humans. They have a leaf-like body structure and mainly feed on hepatic tissues.

Therefore, both Taenia (tapeworm) and Fasciola (liver fluke) are examples of organisms belonging to the phylum Platyhelminthes.