Please explain the answer in detail. Thank you!

1 Lexical/Dynamic Scoping procedure main() int var -10; procedure set_var(int val) var val; end set var procedure proc1() set var(1); end proc1 procedure proc2(): int var- 2; set var (4); print var; end proc2 print var; set var (41); proc1); print var; proc2) end main (a) Suppose the procedure main() uses static (lexical) scoping. What will it print, and why? (b) Suppose the procedure main() uses dynamic scoping. What will it print, and why