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Using global variables except in very restricted and well-defined situations is a sign of extremely bad programming.

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Self-referential functions are also called recursive functions.

Some (but not all) recursive functions can be written in a nonrecursive manner using an iterative solution.

Functions that call themselves are referred to as ____ functions.

A. nested
B. recursive
C. loop-back
D. rolling

A function can invoke a second function, which in turn invokes the first function; this type of recursion is referred to as ____ recursion.

A. direct
B. indirect