Final answer:
The correct answer is A) Data structures, which are essential for efficiently organizing and partitioning reference data for better performance and manageability.
Step-by-step explanation:
The set of enabled objects used for partitioning reference data is A) Data structures. Data structures are critical components in computing that enable the organization, management, and storage of data efficiently.
In the context of partitioning reference data, which typically involves organizing data into subsets that can be processed or manipulated more easily, specific data structures such as arrays, trees, or hash tables might be utilized. These structures help in dividing the data into logical sections that enhance performance, maintainability, and scalability.