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					 Expansion of RDBMS is
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                        - Repairable Database Management System
- Relational Database Management System
- Relational Database Memory System
- Recurring Database Memory System
 
Correct Option: B
A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by E. F. Codd, of IBM’s San Jose Research Laboratory. 
 
	