Use the Information Below to Answer the Following Questions

Multiple Choice

Use the information below to answer the following questions.
Consider the following maximal flow problem where node 1 is the source and node 6 is the destination.

-Refer to the figure.What is the constraint associated with node 6?

A) X₄₆ + X₅₆ = 0
B) X₄₆ + X₅₆ = 1
C) X₄₆ + X₅₆ - X₆₁ = 1
D) X₄₆ + X₅₆ - X₆₁ = -1
E) X₄₆ + X₅₆ - X₆₁ = 0