OPT: [I] power an electrical device. [II] disconnect. [III] move to different locations. [IV] heat is produced. [V] matter vibrating. [VI] photosynthesis. [VII] fuel cell. [VIII] preventing heat transfer.
Given those answer options, answer the question: Fact 1: Powering an electrical device with a battery requires a path for electricity to flow through a closed circuit. Fact 2: An electric circuit is a closed path for electron flow. Given the two facts above, electron flow allows a battery to do what?
A:
[I]