Which of the following is wrong about the moment? A) Moment is denoted by M, its unit is Nm. B) If the influence line of the force passes through the point where the moment is taken, the value of the moment will be maximum relative to that point. C) The moment of any force is equal to the force times the arm of force. D) If more than one force acts on a system, the resultant of the moments of these forces relative to a point is equal to the moment of the force.

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