Final answer:
Database languages are designed for managing and manipulating data within databases, which is essential for many types of applications. These are distinct from content-markup languages, which are used for data presentation.
Step-by-step explanation:
The languages that focus on processing data and information for a wide variety of different types of applications are d. Database languages. Unlike content-markup languages, which are primarily used for formatting and presenting data, such as HTML and XML, database languages are designed to manage and manipulate data within a database. Examples of database languages include SQL for relational databases and Cypher for graph databases. These languages allow for the creation, querying, updating, and administration of databases, which serve as essential backbones for a multitude of applications, from websites to banking systems.