Electric charges that are different

A. attract each other.
B. repel each other.
C. exist in pairs.
D. do not interact.
i think it is a

a is correct

B. repel each other.

The correct answer is B. Repel each other. Electric charges that are different from each other, such as positive and negative charges, will repel each other.

To understand why, we can refer to Coulomb's Law, which states that the force between two charges is directly proportional to the product of their magnitudes and inversely proportional to the square of the distance between them.

In this case, since the charges are different, one charge will have a positive value and the other a negative value. When these charges are brought close together, the forces acting on them are in opposite directions because of their opposite signs. This leads to a repulsive force between them.

To obtain this answer, you can remember that like charges repel each other (positive-positive or negative-negative), while opposite charges attract each other (positive-negative).