What does a query allow you to do? Select all that apply.

A query is a fundamental tool in Appian that allows users to interact with data sources, such as record types or relational databases. By utilizing a query, you can extract or retrieve specific data points from these sources, making option A a correct choice. This functionality is essential because it allows developers to present relevant data within their applications, ensuring users have access to the information they need.

Queries also offer powerful capabilities beyond just returning data. They enable users to sort and filter results, which directly supports better data presentation and usability. The ability to limit the results returned ensures efficient data processing and display. Similarly, aggregation functions allow users to group fields based on common values to generate insightful summaries, such as totals or averages.

The absence of the other options relates to their broader functionality, which may not be the primary purpose of a query. Writing data, for instance, typically involves other operations or functions that specifically handle creating or updating records rather than mere querying. Understanding the primary purpose of a query is essential for effectively utilizing it within Appian applications.