Fact 1: Abattery converts chemical energy into electrical energy. Fact 2: Battery life is several months for a AA lithium cell. Given the two facts above, what converts chemical energy into electrical energy?

Options: [I] sensory neurons [II] AA lithium cell [III] rotten food [IV] Firecrackers [V] an engine [VI] deoxyribonucleic acid [VII] magnets [VIII] plants
Answer:
[II]