Please explain and solve - not sure my answer is correct

QUESTION 15 Two tiny beads are 3 cm apart with no other charges or fields present. Bead A carries -20 JC of charge and bead B carries -5 JC. Which one of the following statements is true about the magnitudes of the electric forces on these beads? O The force on B is 4 times the force on A. The force on A is exactly equal to the force on B. O The force on B is 100 times the force on A. O The force on A is 4 times the force on B. The force on A is 100 times the force on B. 4 points Saved