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2). Answer TRUE or FALSE (a). A "loop" in the transportation Simplex method contains an even number of cells. (b). A balanced transportation problem always has a unique optimal solution. (c). Vogel's method always finds a BFS to a balanced transportation problem that is at least as good as a BFS found by the Northwest corner method. (d). Consider a Balanced Transportation Problem. The number of basic variables found by Vogel's method must be the same as the number of basic variables found by the Northwest Corner method. (e). An optimal solution to an Assignment problem is always degenerate