Which type of key allows reference to specific values within a typelist?

The correct choice highlights the function of a Type Key within the Guidewire Insurance Suite. A Type Key serves as a unique identifier that references specific values in a typelist, enabling applications within the suite to effectively retrieve and utilize those values. Essentially, it acts as a pointer to a distinct entry within the typelist, allowing for consistent usage across different parts of the system and ensuring data integrity.

In the context of Guidewire, typelists are collections of predefined values that can be reused throughout the application, facilitating standardization and reducing redundancy. The Type Key is vital for the operational efficiency of the system as it maintains a direct association between these keys and the underlying data values.

Other options, while they represent different kinds of keys, do not hold this specific functionality. An Array Key is typically associated with an organized grouping of data rather than a reference to typelist values. A Composite Key combines multiple fields to create a unique identifier for records but does not serve specifically for accessing typelist entries. Meanwhile, a Primary Key is essential for uniquely identifying records within a database entity but also doesn't function as a means to reference specific typelist values.