2 Lexical Scoping This problem uses the following procedure. This procedure uses static (lexi- cal) scoping. procedure main): int a; procedure proc1(int i): int b; procedure recursion (int k) print b; b=b-1; recursion(k b); else: end recursion b bi; recursion(); end proci a- 1; proc1(4); print a; end main (a) What does this procedure print? (Give the output of procedure main)) (b) Rewrite the procedure main() where each variable (argument vari- ables, declared variables, procedure names) is renamed by their (level, offset) pairs. (o) How does procedure proc1 find variable a in instruction b a + 1: Show the RISC instructions corresponding to the high-level instruc- tion b = a + 1 ; in this procedure. You should use the saine ILOC instruction format as used in class. (d) Show the stack frames at the beginning of procedure procl. Label each frame with its procedures name, and make sure you include the