An organelle found in most eukaryotic cells described as "cellular power plants", because their primary function is to convert organic materials into energy in the form of atp

Correct Mitochondria

Mitochondria is found in all eukaryotic cells and it perform very important function inside the cell. It is also known as the power house of the cell.

It generate power which is required by the cell for its functioning by converting the energy in to a form that is usable by the cells.

It serves as a site for cellular respiration and ultimately generate energy for the cells from the food we eat to carry out activities and process of the body such as cell division, cell death and growth.

i am positive it is c. condensing but i may be wrong