What can you say about the following statements ? I. XML tags are case-insensitive. II. In JavaScript, identifier names are case-sensitive. III. Cascading Style Sheets (CSS) cannot be used with XML. IV. All well-formed XML documents must contain a document type definition.
only I, III and IV are false.
Each statement is checked against the XML 1.0, CSS and ECMAScript rules.
I. XML is case-sensitive: <Book> and <book> are different element names, and a start tag must match its end tag exactly in case. The statement is false.
II. JavaScript identifiers are case-sensitive: total, Total and TOTAL are three different variables. The statement is true.
III. CSS can style XML documents; an XML file links a stylesheet with the processing instruction <?xml-stylesheet type="text/css" href="style.css"?> and browsers apply it to the XML elements. The statement is false.
IV. A well-formed XML document only has to obey the syntax rules (one root element, properly nested and closed tags, quoted attribute values). A document type definition is needed only for a valid document, not for a well-formed one. The statement is false.
So exactly I, III and IV are false and II is true. The choices that call II false, or that leave out I or IV from the false statements, do not fit.
only I, III and IV are false. option is correct.
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