3. Consider the following pseudo-code in an imperative language: int x = 1, n = 1; function f () { int x = 3; function g (int c,d) { c = c-1; print (c,d,x,n); } /* end of g */ /* body of f */ g(x,x); } /* end of f */ function h () { 2; int n = f(); } /* end of h */ main() { h(); } a) What is the output, when call by value and static scoping is used? b) What is the output when call by reference and dynamic scoping is used?