The steps in an investigation between two negatively charged objects are listed below. Step 1: Rub a cloth on two uncharged balloons to make them negatively charged.
Step 2: Bring the two negatively charged balloons together.
Step 3: Observe the repulsion between the two objects.

Which statement is true?

An object changes its charge when placed near another charged object.
Bringing two positively charged objects close together would result in attraction.
The two balloons do not have to touch for repulsion to be observed.
Two negatively charged objects will attract each other when they touch.