///
#include <gtk/gtk.h>
int main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *label;
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), " Teste");
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_main_quit), NULL);
label = gtk_label_new ("Rótulo");
gtk_container_add (GTK_CONTAINER (window), label);
gtk_widget_show_all (window);
gtk_main ();
return 0;
}Considerando que o código em linguagem C acima usa o toolkit GTK+, assinale a opção correta a respeito desse código.