To generate the jth column of the flexibility matrix

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To generate the j^th column of the flexibility matrix

A. A unit force is applied at coordinate j and the displacements are calculated at all co-ordinates

B. A unit displacement is applied at co-ordinate j and the forces are calculated at all co-ordinates

C. A unit force is applied at coordinate j and the forces are calculated at all co-ordinates

D. A unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates

Answer: Option A

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