Which statement best describes the primary function of mitochondria in eukaryotic cells?

• A. They generate ATP by oxidizing fuels through the citric acid cycle and oxidative phosphorylation.
• B. They package and sort proteins for secretion via the endomembrane system.
• C. They synthesize proteins by translating mRNA on ribosomes in the cytosol.
• D. They store genetic information as linear chromosomes and control transcription for the cell.

Answer: (A)