QUESTION 6 Solve the following problem using graphical linear programming Objective: Minimize Z=8X1 +12 X2 Subject to: Subjective 1: 5X1 + X2 2 20 Subjective 2: 3X1 +3 X2 2 21 Subjective 3: X2 22 What are the values of slack/surplus variables? A. for subjective 1: Surplus = 9 for subjective 2: Slack = 0 for subjective 3: Slack = 0 B. for subjective 1: Slack = 9 for subjective 2: Slack = 0 for subjective 3: Slack = 0 C. for subjective 1: Surplus = 0 for subjective 2: Surplus = 0 for subjective 3: Surplus = 0 D. for subjective 1: Surplus = 9 for subjective 2: Surplus = 0 for subjective 3: Surplus = 0