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What is the primary difference between the relational database (RDB) andobject-oriented database (OODB) models?A) RDB allows the definition of relationships between different tables, whereas OODBdoes not allow this.B) OODB incorporates methods with data structure definition, whereas RDB does notallow this.C) OODB supports multiple objects in the same database, whereas RDB supports onlytables.D) RDB supports E.F. Codd's rules, whereas OODB does not support them.Answer：转载于:https://blog.51cto.com/13854012/2351694