Q:Fact 1: When electricity flows to a light bulb , the light bulb will turn on.  Fact 2: Electricity is electrons in motion.  Given the two facts above, answer the question "what flows to a light bulb to turn it on?" with the following options:  - heat energy  - protons  - Solar energy  - neutrons  - direct energy  - energy  - electrons  - light switch
A:
electrons