【单选题】

XML is a (71) language for documents containing (72) information.

Structured information contains both content(words, pictures, etC、)and some indication of what role that content plays(for example, content in a section heading has a different meaning from content in a footnote, which means something different than content in a figure caption or content in a database table, etC、).Almost all documents have some structure.
A、markup language is a (73) to (74) structures in a document. The XML specification defines a standard way to add markup to (75) .
A．make-up
B．madeup
C．markup
D．makeup