Answer:
Conservation of Charge is the principle that the total electric charge in an isolated system never changes. The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always conserved.
Sorry I came a lil late,
The answer to your question is, 2.
Hope this helps! :)
It depends. many of the websites i see answering the questions are all over the place, but good luck.
