What type of energy conversion takes place in a battery?

Correct option is D

The type of energy conversion that takes place in a battery is (d) chemical energy into electrical energy.
A battery is a device that converts chemical energy into electrical energy. The chemical energy is stored in the battery's cells, which are made up of two different types of materials, called electrodes. The electrodes are separated by an electrolyte, which is a liquid or gel that allows the ions from the electrodes to move.
When the battery is connected to a device, the chemical reaction between the electrodes and the electrolyte produces electrons. These electrons flow through the device, providing it with electrical energy.