Q. Which of the following is true of a scientific theory?

• (A) It is only accepted after the person who came up with it has died.
• (B) It is a method or device that applies scientific knowledge for some specific purpose.
• (C) It generates testable hypotheses, is supported by a large body of evidence, and is broad in scope.
• (D) It must demonstrate the effect of one variable by testing control groups and experimental groups.