Answer-Pick the odd one out.

In Relational database model, a table is a collection of data elements organised in terms of rows and columns. A table is also considered as a convenient representation of relations. But a table can have duplicate row of data while a true relation cannot have duplicate data. Table is the most simplest form of data storage. A single entry in a table is called a Tuple or Record or Row. A tuple in a table represents a set of related data.