Answer:
B) During charging, the battery's chemical reactions reverse, converting electrical energy into chemical energy and storing it in the battery.
Explanation:
When you charge a battery, you're putting energy into it. This energy comes from the charger and changes into a form that the battery can store. So, the electrical energy turns into chemical energy inside the battery, when you use the battery, it will turn this stored chemical energy back into electrical energy to power your devices.