The solution to the dual LP problem A)can always be derived by examining the Z_j row of the primal's optimal simplex tableau. B)is derived identically to the solution to the primal. C)presents the marginal profits of each additional unit increase of a constraint's coefficients. D)is attainable only if the problems are both degenerate.

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The solution to the dual LP problem can be derived by examining the Z_j row of the primal's optimal simplex tableau, as it provides the shadow prices or dual values associated with the constraints of the primal problem.

The Solution to the Dual LP Problem