30. What can we infer from the passage?　 (A)Consumers protest against the Face ID function on the new iPhone.　 (B)Coverings that obscure most of the face are never a problem for identification.　 (C)The revelation of private information is no longer an issue citizens worry about.　 (D)In the near future, all we need will be our face to take a train or make a purchase in a store.