Rewrite the system of inequalities, adding slack variables or subtracting surplus variables as needed.x1 + x2 + x3 ? 44x1 + x2 + x3 ? 21x1 + x2 ? 14
A. x1 + x2 + x3 - s1 = 44
x1 + x2 + x3 + s2 = 21
B. x1 + x2 + x3 - s1 = 44
x1 + x2 + x3 + s2 = 21
x1 + x2 + s3 = 14
C. x1 + x2 + x3 + s1 = 44
x1 + x2 + x3 - s2 = 21
x1 + x2 - s3 = 14
D. x1 + x2 + x3 + s1 = 21
x1 + x2 + x3 - s2 = 44
Answer: C
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