The characteristics described in the table fit best with C. kingdom Protista.
Here's a brief explanation for each option:
A. Kingdom Fungi - Mostly multicellular and heterotrophic, but they don't typically contain single-celled forms that are notable exceptions like Protista.
B. Kingdom Plantae - Primarily multicellular and almost entirely autotrophic (photosynthetic), not heterotrophs.
C. Kingdom Protista - This kingdom includes both single-celled and multicellular organisms, and members can be either autotrophic (like algae) or heterotrophic (like protozoa).
D. Kingdom Animalia - Animals are typically multicellular and heterotrophic, with no significant single-celled organisms.
Therefore, the answer is C. kingdom Protista.