Question: A minimization linear integer programming model with two integer variables x 1 and x 2 has an optimal solution with the objective function value of

A minimization linear integer programming model with two integer variables x₁ and x₂ has an optimal solution with the objective function value of 8.5. If we remove the integer constraint for both variables, which of the following values CANNOT be the new optimal objective function value for the relaxed problem?

		A. 9
		B. All the above three values can be the new optimal value.
		C. 8
		D. 8.5

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