Consider the recursive function mystery given below which takes a list as an argument. Enter the definition in DrRacket. (define (mystery L) (if (null? L) L (append (mystery (cdr L)) (list (car L)))))...

Extracted text: Consider the recursive function mystery given below which takes a list as an argument. Enter the definition in DrRacket. (define (mystery L) (if (null? L) L (append (mystery (cdr L)) (list (car L))))) a. Type the following in the Definitions window and click Run. What does this function do? Explain the logic of the function. (mystery '(1 2 3)) (mystery '((1 2) (3 4) 5 6)) b. As you may have noticed, there is no return statement here. Explain how the return value is determined in the above function.