When does an electrically charged object attract another object? A. When one object is far away from the other
B. When each object is negatively charged
C. When the objects are oppositely charged
D. When each object is positively charged

C. When the objects are oppositely charged

Explanation:

Electrostatic interactions are commonly observed whenever one or more objects are electrically charged. Two oppositely-charged objects will attract each other. A charged and a neutral object will also attract each other. And two like-charged objects will repel one another.

From Bing, this is not my work

14 days is the half-life of phosphorus-32