Use the table of electric force between objects in two different interactions to answer the question.
| Interaction | Charge on Object 1 (C) | Amount of Force Between Object 1 and Object 2 |
| A | +1 | weak |
| B | +1 | strong |
Which conclusion about the interactions is best supported by Coulomb’s law?
a. In interaction A, object 2 has a negative charge; but, in interaction B, it has a positive charge.
b. The two objects in interaction A are smaller than in interaction B.
c. The two objects in interaction A are farther apart than in interaction B.
d. In interaction A, the electric force is repulsive; but, in interaction B, it is attractive.
d. In interaction A, the electric force is repulsive; but, in interaction B, it is attractive.
This conclusion is best supported by Coulomb's law, which states that like charges repel and opposite charges attract. The fact that the force in interaction A is weak and repulsive indicates that both objects have the same type of charge (positive in this case). In interaction B, where the force is strong, it suggests that the objects have opposite charges, leading to an attractive force.