Which statement best explains the relationship between the electric force between two charged objects and the distance between them? a. As the distance increases by a factor, the electric force increases by the square of that factor. b. As the distance increases by a factor, the electric force increases by twice that factor. c. As the distance increases by a factor, the electric force decreases by twice that factor. d. As the distance increases by a factor, the electric force decreases by the same factor. e. As the distance increases by a factor, the electric force decreases by the square of that factor