Which type of general table allows multiple primary keys?

The correct choice highlights the characteristics of newer types of general tables in certain database management systems that support multi-key structures. These newer types allow for the definition of composite keys, which can consist of two or more columns in combination—effectively enabling the table to have multiple keys functioning as primary identifiers for rows.

This model facilitates more complex data relationships and offers greater flexibility when designing a database schema. In practical applications, this means developers can efficiently query and manage data across related tables, as multiple unique identifiers can be used simultaneously for indexing and searching operations.

By contrast, older models typically adhered to the restriction of having a single primary key per table, limiting the design and scalability of database systems. The intermediate kind doesn't provide the extensive features that newer types do, leading to the advantage of multi-primary key support being clearly within the domain of the newer table types. Thus, the answer points to the modern capabilities that enable robust and versatile data structures in database design.