Which of the Following Is an Example of Natural Consequences

Which of the following is an example of natural consequences?

A) Jake spills milk on the coffee table and mother hands him paper-towels to wipe up the spill.
B) Tamika pulls the cat's tail and get's scratched on the arm by the cat.
C) After telling Terence he could ride his bike in the driveway or in the backyard, Terence slips out of the driveway into the street. Father comes out and brings Terence and the bike into the backyard and closes the gate.