Two positively charged particles are 0.03 m apart. The first particle has a charge of 8.1 C, and the second a charge of 2.6 C. Which change would lead to the smallest increase in the electric force between the two particles? A. Decrease the charge on each particle by 1.0 C. B. Decrease the charge on the first particle by 1.0 C. C. Increase the charge on the first particle by 3.0 C. D. Increase the charge on each particle by 2.0 C.