1. (2 points - Suggested completion time = 1 min.) The transshipment problem is an extension of which other problem? (a) the assignment problem (b) the shortest route problem (c) the maximal flow problem (d) the transportation problem 2. (2 points - Suggested completion time = 1 min.) The problem that deals with the distribution of goods from several sources to several desti- nations without intermediaries is the (a) transshipment problem. (b) transportation problem. (c) shortest path problem. (d) maximal flow problem. 3. (2 points - Suggested completion time = 1 min.) Which of the following problems is a special case of the transportation problem? (a) the assignment problem (b) the shortest route problem (c) the maximal flow problem (d) the transportation problem 4. (2 points - Suggested completion time = 1 min.) Which of the following is not true regarding the linear programming formulation of a trans- portation problem (check all that applies)? (a) The number of variables is (number of origins) x (number of destinations). (b) Unit costs appear only in the objective function. (c) The constraints' left-hand side coefficients are either 0 or 1. (d) The number of constraints is (number of origins) x (number of destinations). 5. (2 points - Suggested completion time = 1 min.) A transportation problem with 25 origins and 30 destinations will have (a) 30 decision variables. (b) 25 decision variables. (c) 750 decision variables. (d) 55 decision variables