Correct Answer: Chemical energy into electrical energy

Solution : The correct answer is Chemical energy into electrical energy .

In a battery, chemical energy is converted into electrical energy. This process involves a chemical reaction within the battery's cells. The chemical components of the battery, such as the anode and cathode, undergo reactions that release electrical energy. When the battery is connected to a device or a circuit, this electrical energy is then used to power electronic devices, such as flashlights, smartphones, or other portable gadgets.