Alfonso has been working with XQuery, and would like to create a library module to centralize the global variables and functions he's created. He has encountered some problems in implementing the library module, and comes to you for help.?
Alfonso has fixed the error in the query prolog, but now is encountering problems when he tries to reference a function he defined and added to the library module. In looking at his library module code, you remind him that he must include the _____ keyword when creating a user-defined function.

A. ?namespace
B. ?define
C. ?declare
D. ?library


Answer: C

Computer Science & Information Technology

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