Ribosomes are the organelles in the cell that are responsible for protein synthesis. They are made up of two subunits, a large subunit and a small subunit. The large subunit contains the active site where the protein is synthesized, while the small subunit helps to bring the amino acids together. Ribosomes are found in the cytoplasm of the cell, as well as in the nucleus.
Lysosomes are organelles that contain digestive enzymes. They are responsible for breaking down and recycling cellular components. Lysosomes are found in the cytoplasm of the cell.
Golgi bodies are organelles that are responsible for packaging and exporting proteins. They are also involved in the synthesis of lipids and polysaccharides. Golgi bodies are found in the cytoplasm of the cell.
Mitochondria are organelles that are responsible for energy production. They are the powerhouses of the cell. Mitochondria are found in the cytoplasm of the cell.
Therefore, the correct answer is A. Ribosomes.