The drawing shows a student holding two negatively charged balloons.

What is most likely to occur if the student brings the balloons closer to each other?

a
The magnitude of the electrostatic force between the balloons will decrease, and they will attract each other.
b
The magnitude of the electrostatic force between the balloons will increase, and they will repel each other.
c
The magnitude of the electrostatic force between the balloons will increase, and they will attract each other.
d
The magnitude of the electrostatic force between the balloons will decrease, and they will repel each other.

b) The magnitude of the electrostatic force between the balloons will increase, and they will repel each other.