What Is the Correct Constraint for Node 2 in the Following

question 37

Multiple Choice

What is the correct constraint for node 2 in the following diagram?

• A)X₁₂ + X₂₃ = 100
• B)X₁₂ \(\le\)X₂₃ \(\ge\) 100
• C)-X₁₂ + X₂₃ \(\ge\)-100
• D)X₁₂ -X₂₃ \(\ge\)100

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