Question 9 1 pts Grave city is considering the relocation of several police substations to obtain better enforcement in high crime areas. The locations under consideration together with the areas covered areas in total are tabulated below. Potential substation locations Areas covered A 1.5.7 1.2.5.7 1.35 245 E 3,4,6 4,5,6 B D F G 1.5,6,7 There are two additional factors to be considered: NOTE 1 At each of locations through a police substation can be located or not. Moreover the cost of opening a subitation at a particular substation differs from A through The locations at C.D. F and cost the least (treat the cost of opening a substation at C.D. For Gas 1 unit). The cost to open at Ais 7 times the costat 7 units and the cost to open at Bis thrice the cost at C-3 units). The cost to open at Els 4 units NOTE 2: Areas 1,4 and 7 are high crime areas. In particular, area trecuires two separate substations to cover it area 4 requires 3 substations to cover it and area 7 also requires 2 separate substations to cover it. We will denote the decision variables simply as A, B, CD, E, F and instead of XA X. etc) Which of the following statements is true? OG2h a constant ODE+F+ G1 is a constraint OA+B+CG3 is a constant A+ - CEG-2 is a constraint