Correct option is C
The correct answer is analogy.
An analogy is a comparison between two different things that highlights their similarities in certain aspects. In the given statement, the comparison is made between a battery and a pump in a water circuit. The purpose of the analogy is to explain the functioning of a battery by drawing similarities with a pump in a water circuit.
Analogies are often used in science and education to help understand complex concepts by relating them to more familiar or easily understandable concepts. In this case, the analogy suggests that similar to how a pump circulates water in a circuit, a battery circulates electrical energy in an electrical circuit.