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.
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