Consider the use of variables inside functions.

When the following statements are executed, what is the output?

You may assume all variables have been properly declared and all function calls are successful.

F1() { int x = 1; printf("%d ", x); F2(); } F2() { int x = 2; printf("%d ", x); } main() { int x = 3; printf("%d ", x); F1(); printf(" "); }

		3 1 2
		1 2 3
		3 2 1
		1 3 2
		2 1 3