The statement --- if forces acting on a point can be represented in magnitude and direction by the sides of a polygon taken in order then their resultant will be represented in magnitude and direction by the closing side of the polygon taken in opposite order ---- is known as

• A. Law of triangle of forces
• B. Newton's law of forces
• C. Law of polygon of forces
• D. D'Alembert's rule
• E. Lami's theorem