A cellutar operator needs to keep track of its customers and their subscriphon plans imobtio phones) Based on the above figure that contains instances of customers and instances of their 5ubscriptions in instances of plans -Determine the cardirialites and constraints of the relationship between the customer and the pian entirisg? Mandatory One to Mandatory Mary Opional Cone to Mandalory Mary Mandatory Mary to Mandatory Mtary Opbicnal Mary to Mandatory Mary