What Is the Constraint for Node 2 in the Following $\le$

question 42

Multiple Choice

What is the constraint for node 2 in the following maximal flow problem?

• A)X₁₂ -X₂₃ -X₂₄ = 0
• B)X₁₂ + X₂₃ + X₂₄ = 0
• C)X₁₂ \(\le\) 4
• D)X₁₂ + X₁₃ - X₂₃ = 0

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