A simplex matrix for a standard maximization problem is given. Indicate whether or not the solution shown is complete (optimal). If the solution is not complete, find the next pivot or indicate that no solution exists.
?
?
A. next pivot: 4 in R3C1
B. next pivot: -3 in R4C1
C. next pivot: 2 in R1C1
D. optimal solution
E. no solution
Answer: A
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