Which is the correct statement about law of polygon of forces ?
(A) if any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium
(B) if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium
(C) if a polygon representing forces acting at a point is closed then forces are in equilibrium
(D) if any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium
(E) none of the above.
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