Question 17 (1 point) Consider the Scheme definition: (define (f xs) (if (eq? xs ()) 0 (+(carxs)(f(cdr(cdrxs)))))) When the definition has been made and the expression (f ' (1234567 8 )) is entered and evaluated, which one of the following statements is true: The result is 16 . A runtime error occurs because cdr occurs inside cdr. The result is 36 . The result is 20 . The result is 0