Read the following code segment in Ada. Show the running time stack, including dynamic links and static links, when the execution reaches position 1 in the program.

procedure sub1 is

var x: integer;

procedure sub1_1(Flag: Boolean) is procedure sub1_1_1 is var x: integer; begin sub1_1(false);

end;

begin if Flag

then sub1_1_1;

else sub1_2;

end; procedure sub1_2 var y: integer; procedure sub1_2_1

var z: integer; begin …  position 1

end;

begin sub1_2_1;

end;

begin sub1_1(true);

end;