The reserved button ____ means to clear the form fields to the original values.

An electronic spreadsheet is often referred to as a(n) ____________________.

Fill in the blank(s) with the appropriate word(s).

As with XSLT, many calculations and operations in XQuery can be performed using _____, in which the XQuery function calls itself repeatedly until a stopping condition is met.

A. ?recursion B. ?looping C. ?predicates D. ?parameters