Which of the following statements is true of a theory?

A) It is used to organize and explain specific facts.
B) It is invariably the same as a hypothesis.
C) It can only be expressed as a mathematical formula.
D) It cannot be modified to account for new data.

Theory

A systematic, coherent, and logical set of ideas about a particular topic or phenomenon that serves to organize and explain data and generate new knowledge.

Hypothesis

A hypothesis is a proposed explanation for a phenomenon, made as a starting point for further investigation, that can be tested through research and experimentation.