The sciences, in the most general sense, are divided into two; the mathematic sciences and positive sciences. Mathematical sciences are divided into mathematic and logic. Positive sciences are divided into physical sciences and social sciences. Mathematic is an observable and objective science, because the starting point of mathematical concepts is observation, and the entities they symbolize are objective realities, even though they are abstract. The other branch of mathematic sciences is logic. Logic is a science that shows the conditions of validity and correctness of deductions, and like mathematics, logic is also tautological. Mathematics provides precision and logic provides consistency to our knowledge. Thus, mathematical sciences are tools that other sciences use for quantification, knowledge derivation and deducting. Positive sciences are innovative sciences, they have observable, empirical study subjects and make deductions on these subjects. Positive sciences split up to physical sciences and social sciences. Physical sciences are the sciences which study animated and unanimated substances and material facts. Some of the physical sciences are astronomy, physics, chemistry, biology and zoology. Social sciences are the sciences which study social world and the relations among people. Sociology, anthropology, psychology, economics and political science are some of the social sciences. The correct answer is Choice C.