what organelle is called the \powerhouse\ of a cell? nucleus endoplasmic reticulum nucleolus mitochondria

what organelle is called the \powerhouse\ of a cell? nucleus endoplasmic reticulum nucleolus mitochondria
Answer
Brief Explanations:
Mitochondria are responsible for cellular respiration, which generates ATP (energy - currency of the cell). Due to their role in energy production, they are called the "powerhouse" of the cell.
Answer:
D. Mitochondria