Answer:
Option (C).
Step-by-step explanation:
Cell theory states that all organisms are consist of cells and it is the structural and functional unit of life. All cells comes from the already present pre-existing cells. Cell theory was given by Schleiden and Schwann.
The image shown in the question shows that organisms are made up of large number of cells. Living organisms constitute different types of cells.
Thus, the correct answer is option (C).