Does the "American Board of Nursing Specialties" renew nurse certifications?

Yes, the function `isEven` has one parameter `n` and it checks if the value of `n` is even or not. It does so by using the modulo operator `%` that returns the remainder of the division of `n` by 2 and compares it to 0. If the remainder is 0, the function returns true, otherwise it returns false.