What is the theory of production in economics?

Theory of production, in economics, an effort to explain the principles by which a business firm decides how much of each commodity that it sells (its “outputs” or “products”) it will produce, and how much of each kind of labour, raw material, fixed capital good, etc., that it employs (its “inputs” or “factors of production”) it will use.

answer; analytical,creative and practical;

the above statement/question is (true);