There are two correct answers to this question. They both state Whenever an object becomes charged, electric charges have moved from one place to another.
This type of question is related to electricity and the subject of physics. Change conservation is an account relationship. This relationship is between how much charge is in a region and the flow of charge that goes in and out of a particular region.
The idea of change conservation was thought of by William Watson in 1746. He was a British scientist. A year later, Benjamin Franklin also had a part in the idea.