Which of the Following Is NOT a Disadvantage of a Simulation

Multiple Choice

Which of the following is NOT a disadvantage of a simulation?

A) An optimal solution cannot be guaranteed,but relatively good ones are generally found.
B) Simulation software sometimes requires special skills because of the complexity of the formal solution method.
C) Simulation is often the only DSS modeling method that can readily handle relatively unstructured problems.
D) Simulation model construction can be a slow and costly process,although newer modeling systems are easier to use than ever.