Science is based on?

A. Facts

B. Observations

C. Both facts and observations

D. Neither facts nor observations

Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. The formal sciences are often distinguished from the empirical sciences as the former does not depend on empirical observations. Science is related to research, and is normally organized by a university, a college, or a research institute. So it should be A. Facts