An excellent linear programming software package for solving large-scale problems is A. MIDAS-2 B. OPHELIE II C. PDQ/LP D. All of the above E. None of the above

The correct answer is E. None of the above.

MIDAS-2, OPHELIE II, and PDQ/LP are all linear programming software packages, but they are not excellent for solving large-scale problems. In fact, they are all relatively small-scale packages that are not well-suited for solving large-scale problems.

There are a number of other linear programming software packages that are better suited for solving large-scale problems. Some of these include:

• CPLEX: CPLEX is a commercial linear programming solver that is available from IBM. It is one of the most widely used linear programming solvers in the world.
• Gurobi: Gurobi is a commercial linear programming solver that is available from Gurobi Optimization. It is another widely used linear programming solver.
• Xpress: Xpress is a commercial linear programming solver that is available from FICO. It is a powerful linear programming solver that is often used for large-scale problems.
• SCIP: SCIP is an open-source linear programming solver that is available from COIN-OR. It is a powerful linear programming solver that is often used for large-scale problems.
• GLPK: GLPK is a free and open-source linear programming solver that is available from the GNU Linear Programming Kit. It is a relatively small-scale linear programming solver that is not well-suited for solving large-scale problems.
• lpsolve: lpsolve is a free and open-source linear programming solver that is available from the lpsolve project. It is a relatively small-scale linear programming solver that is not well-suited for solving large-scale problems.

These are just a