Mitochondria. Since, it is considered as the powerhouse or energy factories of a cell. It is also found both on animal and plant cells.

Answer:

c. mitochondria

Explanation:

A mitochondrion is a membrane bound organelle found in eukaryotic cells. This organelle generates the cell's supply of chemical energy by releasing energy stored in molecules from food and using it to produce ATP (adenosine triphosphate).