The correct answer is: B. Mitochondria
Mitochondria are organelles found in eukaryotic cells. They are responsible for producing energy for the cell through a process called cellular respiration. Cellular respiration is a complex process that involves the breakdown of glucose into carbon dioxide and water. This process releases energy, which is used by the cell to power its activities.
Plastids are organelles found in plant cells. They are responsible for carrying out photosynthesis, which is the process by which plants convert sunlight into energy. Plastids come in a variety of shapes and sizes, and they each have a different function. For example, chloroplasts are plastids that are responsible for photosynthesis.
Golgi bodies are organelles found in eukaryotic cells. They are responsible for packaging and transporting proteins and other molecules. Golgi bodies are also involved in the synthesis of lipids.
Cell walls are a rigid structure that surrounds the cells of plants and some other organisms. Cell walls provide support and protection for the cell. They are made up of cellulose, a type of carbohydrate.
In conclusion, mitochondria are the organelles that are responsible for producing energy for the cell. They are also called the “powerhouse of the cell.”