Need help with this question thank you!

Consider the following function definition. h - [] = 0 h y (x:xs) | y>0 = y + h (y) XS I otherwise = 0 What is the result of applying h to a number n and a list of numbers zs? The sum of the elements in the list zs The value n! The number of elements in the list zs The number n times the length of the list zs