Pivot once about the circled element in the simplex tableau, and read the solution from the result. 
A. x3 = 14, s2 = -6, s3 = 4, z = 42; x1, x2, s1 = 0
B. x3 = 14, s2 = 12, s3 = -4, z = 42; x1, x2, s1 = 0
C. x3 = 14, s2 = -12, s3 = 4, z = -42; x1, x2, s1 = 0
D. x3 = 14, s2 = 12, s3 = 4, z = 42; x1, x2, s1 = 0
Answer: A
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A. 
= 
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