C # dynamic task execution in the background

I have the following doubt. As I do so that the parameter that I am passing to this function, adapts to the delegate that is assigned to DoWork + = ?? Since the parador is a string, I need the delegate to change based on that string.

public static bool EjecutaTarea(string NombreTareaEjecutar)
        {
            try
            {
                BackgroundWorker tarea = new BackgroundWorker();
                tarea.DoWork += NombreTareaEjecutar;
                tarea.RunWorkerCompleted += Terminado;
                return true;
            }
            catch (Exception ex)
            {
                return false;            }
        }


        static void Tarea1(object obj, DoWorkEventArgs args)
        {

        }
        static void Tarea2(object obj, DoWorkEventArgs args)
        {

        }


        static void Terminado(object obj, RunWorkerCompletedEventArgs args)
        {

        }

greetings