Which one from the following is an example of multicellular organism?

The correct option is C. Snake

The organisms in which a single cell forms the entire structure and performs all the functions are called unicellular organisms. There can be both unicellular prokaryotes and unicellular eukaryotes.

Chlamydomonas​ and Amoeba are unicellular eukaryotes, while bacteria is a unicellular prokaryote.

The organisms with body structure made up of multiple cells together performing the functions are called multicellular organisms.

Snakes are multicellular organisms.