What are the three main functions of a database?

The three main functions of a database revolve around the essential tasks needed to efficiently manage and utilize data. The correct answer highlights that a database not only stores data but also secures it and manages access to that data.

Storing data is fundamental, as databases are primarily designed to keep large volumes of information organized and easily retrievable. This central function allows users and applications to save data in a structured format.

Securing data is equally important because it ensures that sensitive information is protected from unauthorized access and breaches. This encompasses various security measures, including user authentication, access controls, and encryption.

Managing access to data is a crucial function as it dictates who can view or manipulate the data stored within the database. This aspect ensures that only authorized users have the ability to interact with sensitive data, maintaining integrity and compliance with regulatory standards.

The other choices focus on different aspects of data handling but do not encompass these fundamental database functions comprehensively. Options that mention backing up or analyzing data represent valuable actions but do not align with the primary functions that define how databases operate as systems for storing and managing data. Functions such as processing or visualizing data, while relevant, are often associated with applications built on top of databases rather than the databases themselves.