Fact 1: Abattery converts chemical energy into electrical energy. Fact 2: Check the fire alarm's batteries the first of each month. Given the two facts above, answer the question "What converts chemical energy into electrical energy?" with the following options: - Something in a fire alarm - sperm and egg fuse - Males and females - igniting fuel and oxidiser - The bending of a ray of light - basic building blocks of life - sensory neurons - mechanical waves
A:
Something in a fire alarm