Question

what happens when two objects have opposite charges?
they remain stationary
they repel each other
they attract each other
nothing happens

Explanation:

In the context of electric charges (a concept in Physics, a subfield of Natural Science), objects with opposite charges exhibit an attractive force between them. Like charges repel, opposite charges attract. So when two objects have opposite charges, they attract each other.

Answer:

The option "They attract each other" (the third option in the list, with the text "They attract each other")