Which of the following best defines a scientific theory?
A) An 'if, then' statement that can be tested by science.
B) A model used to explain how or why a phenomenon occurs.
C) A unifying concept; often a mathematical description of the way in which a natural phenomenon occurs.
D) A piece of knowledge about the outside world received through the senses or instrumentation.
E) Something that is known to be consistent with reality; that which has not been falsified.