Which statement identifies a characteristic of a scientific theory?

A. It's a subjective

B. It's a proven fact

C. It's based on a opinion

D. It may change over time

The correct answer is B it"s a proven fact.

Explanation:

Any scientific theory is based upon many experiments ans observations. The experiment and observations are repeated many times to provide a scientific logic about that theory.

A scientific theory is accepted only when that theory is logically proved by various experiment, observations, statistical analysis etc.