Which of the following is the file extension for an Extensible Markup Language? A. EML B. HTML C. XML D. XSD

The correct answer is C. XML.

Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. XML is a text-based language, which means that it is made up of characters that can be read by humans. XML is also a hierarchical language, which means that it can be used to create documents with a tree-like structure.

The file extension for an XML document is .xml. This extension is used to identify XML documents so that they can be opened and processed by XML-aware applications.

The other options are incorrect because they are not file extensions for XML documents.

• EML is the file extension for an email message.
• HTML is the file extension for a HyperText Markup Language document.
• XSD is the file extension for an XML Schema document.