4. Consider one of the metaheuristic methods and answer the following questions: Except ant colony A) Explain the method. B) What is the main drawback of this method? C) What solution do you suggest to increase the convergence speed of this method? D) Given the complex classes of problems, which category of problems could be solved by this method? E) Which optimization methods are suitable for this purpose such as global, local, convex, stochastic, deterministic, non-derivative and gradient-based? Why? F) Does this method converge to exact or near the optimal point? Why?