Correct Answer:
A. Extensible Markup Language
The correct answer is Extensible Markup Language. XML stands for Extensible Markup Language. It is a markup language designed to store and transport data in a format that is both human-readable and machine-readable. It allows users to define their own tags, making it "extensible." Among the options:
- Extensible Markup Language: Correct; this is the full meaning of XML.
- External Modern Language: Incorrect.
- Extra Modern Language: Incorrect.
- Expanded Media Language: Incorrect.
Hence, the correct answer is "Extensible Markup Language".