Which is best describes a scientific theory?

A scientific theory is a well-substantiated explanation of an aspect of the natural world, based on a body of evidence gathered through observation and experimentation. It integrates and generalizes multiple hypotheses, providing a coherent framework for understanding phenomena. Unlike a hypothesis, which is a testable prediction, a theory has withstood extensive testing and is widely accepted within the scientific community, though it remains open to revision as new evidence emerges.