Case-based Critical Thinking QuestionsCase 12-2Rosalind wants to add attribute declarations to her DTD, and she turns to you for information about the possible attribute types. Rosalind wants to declare a "coursenum" attribute, the values of which will be unique within the document. Which attribute type should she use?

A. CDATA
B. UNIQUE
C. ID
D. IDREF

Answer: C

Computer Science & Information Technology

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Computer Science & Information Technology