Which of the following is a key feature of a database?

Recognizing relationships between tables is a fundamental aspect of a database. This key feature allows users to design and query data in a way that meaningful connections can be established among different entities. In relational databases, for instance, tables are linked together through primary keys and foreign keys, enabling users to retrieve and analyze data that is distributed across multiple tables with ease.

By mapping out these relationships, databases support complex queries that can aggregate information from various sources, ensuring data integrity and providing insights through interconnected data points. This structure is essential for maintaining organized data and is a cornerstone of how databases operate, allowing for powerful data management and retrieval capabilities.

Other options may involve important functionalities related to data processing or visualization, but they do not capture the core feature of a database that fundamentally enables relational data handling and connectivity.