(evenp <integer>)
(even <integer>)
(numeven <integer>)
(numnevenp <integer>)
Answer is Wrong!
Answer is Right!
The correct answer is A. (evenp ).
The function (evenp ) returns t if is even and nil otherwise.
The function (even ) returns t if is even and nil otherwise, but it is not a standard function in Common Lisp.
The function (numeven ) returns the number of even numbers less than or equal to .
The function (numnevenp ) returns t if is not even and nil otherwise.