Which of the following describes the main purpose of the MongoDB Aggregation Framework?

The main purpose of the MongoDB Aggregation Framework is data analysis. This framework provides a powerful way to process and analyze large datasets, allowing users to perform operations such as filtering, grouping, and transforming data to extract meaningful insights. By using pipelines, where each stage processes the data and passes it to the next, the Aggregation Framework allows for complex data transformations and computations that facilitate reporting and analytical tasks. This capability makes it particularly useful for applications that require real-time data insights and allows developers to write rich queries that span multiple documents and collections.

While data storage, retrieval, and security are essential aspects of database management, they do not encapsulate the primary function of the Aggregation Framework, which is focused on deriving insights and performing calculations on the stored data.