51) In XML, a document author can only use the predefined XML tags.
52) XML provides a standardized, non-customizable way to describe the content of a document.
53) XML designers created a system that allows document structure, data content, and
materialization to be mixed.
54) XML Web Services is a means for protecting and hiding elements of program functionality
that otherwise would be available for misuse over the Web.
55) XML stands for ________.
A) Experimental Markup Language
B) Existential Markup Language
C) Extendable Markup Language
D) Extensible Markup Language
E) Extensible Marketing Language