Eukaryotic organisms are those organisms which exhibit complex cellular composition. They exhibit membrane bound organelles and nucleus is also enclosed inside a membrane which encloses the genetic material of the organisms. Examples include plants, animals and fungi.
Multicellular organisms are those which exhibit multiple layers of the cells to perform a specialized function.
Hetrotrophic organisms are those which are dependent upon other organisms for their food and nourishment.
Among the given options, Animals is the correct option. This is due to the fact that all animals are eukaryotic organisms as they have a membrane bound nucleus and other cellular organelles. All animals are multicellular because of the fact that multicellular system is necessary for performing specialized functions required for survival. They are incapable of synthesizing their own food either by chemosythesis or photosynthesis. They are dependent upon other organisms like plants and other animals for their food.
