Question 4 5.0 points possible (graded, results hidden) Based on your learning from the course, choose the right option(s). The 2-opt method is applied to improve an existing routing and so is guaranteed to provide an optimal solution. A customer location that is already part of a route and has another customer location before and after it cannot be joined to another location to form a different route in a savings algorithm. Simulation is a descriptive modeling method that can be used to test the prescriptive modeling nature of optimization techniques. The nearest neighbour heuristic always provides the fastest and the most optimal solution. Well connected cities have a higher circuity factor compared to the cities with mountain regions