which of the following scenarios best exemplifies the concept of hierarchical diffusion? a.responses the practice of selling pizza by the slice in america, whereas pizzas in italy were traditionally sold as whole pies the practice of selling pizza by the slice in america, whereas pizzas in italy were traditionally sold as whole piesb. the addition of hands-free driving features to cars manufactured by companies headquartered throughout the world the addition of hands-free driving features to cars manufactured by companies headquartered throughout the world c.the migration of asylum seekers from syria to europe the migration of asylum seekers from syria to europed. the increasing popularity of korean pop music around the world because of social media e.the increasing popularity of korean pop music around the world because of social media the increasing sales of clothing brands endorsed by professional athletes to customers in europe