Answer: Theory
Step-by-step explanation:
The scientific theory is known as the well tested explanation as it is the form of presentation that makes something simple to see and assessment of a lot of reality shown in their connection to each other.
A well-tried clarification that clarifies a great deal of perceptions is known as theory. An explanation is known as well tested when it explain a proper and specific observation about the theory.
Therefore, theory is the correct answer.