The identifier of the entry becomes the____of the corresponding table. primary key foreign key supertype subtype either A or B. In crow\'s foot style E-R diagrams, a circle across the relationship line near on entity indicates: a minimum cardinality of zero. a minimum cardinality of one. a maximum cardinality of one. a maximum cardinality of many. Both B and C Given only the following excerpt of an E-R model: Solution 20) ALL OF THE ABOVE 21) B. TRUE 22 E . ALL THE ABOVE primary key IS It is a unique. Used to represent rows in relationships Can be candidate key Used to identify unique rows 23) D. Relational database stores data in the form of TABLE 24 ) E NEITHEIR ONE OF THE ABOVE When the primary key of one relation is placed into a second relation, it is called a foreign key 25) D. ALL THE ABOVE 26B) FALSE .