If One Changes a Nonbasic Objective Function Coefficient, the Optimal

Multiple Choice

If one changes a nonbasic objective function coefficient, the optimal solution of a maximization problem will remain optimal if

A) the increase in the coefficient does not exceed the value of the Z_j associated with that nonbasic variable.
B) the increase in the coefficient does not exceed the values of the Z_j's of every basic variable.
C) the decrease in the coefficient does not exceed the value of the Z_j associated with the nonbasic variable.
D) the new C_j - Z_j associated with the nonbasic variable remains positive.