ANSWERS MUST BE IN THE SAME FORMAT AS EXAMPLE.

EXAMPLE

Consider the following block. Assume dynamic scoping. a) Draw the runtime stack after each line executes given that both parameters a and x are passed using Call-by-Name. What are the values of y and z after line 13 executes? b) Draw the runtime stack after each line executes given that both parameters a and x are passed using Call-by-Need. What are the values of y and z after line 13 executes? Exercise: Compute under CBN