The Values in the C_j - Z_j , or Net

The values in the c_j - z_j , or net evaluation, row indicate

A) the value of the objective function.
B) the decrease in value of the objective function that will result if one unit of the variable corresponding to the jth column of the A matrix is brought into the basis.
C) the net change in the value of the objective function that will result if one unit of the variable corresponding to the jth column of the A matrix is brought into the basis.
D) the values of the decision variables.