Draw the stack of activation records for the following C program after (a) the call to r on line 13 and (b) after the call to p on line 14. Show the control links, and fill in the local names in each...

Draw the stack of activation records for the following C program after (a) the call to r on line 13 and (b) after the call to p on line 14. Show the control links, and fill in the local names in each activation record. (c) Describe how variables r and x are found on lines 4 and 5 during the execution of p