Question: Which statement is true? a. IP can be solved by rounding the LP optimal solution b. If the optimal solution of the LP relaxation of

Which statement is true?

a. IP can be solved by rounding the LP optimal solution

b. If the optimal solution of the LP relaxation of an IP is integer, it is also the optimal solution of the IP

c. If the optimal solution of the LP relaxation of an IP is integer, we dont know for sure whether it is the optimal solution of the IP

d. It is easier to solve LP by branch and bond

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