Consider the following function definition.

h _ [] = 0 h y (x:xs) | y>0 = y + h (y) xs | otherwise = 0

What is the result of applying h to a number n and a list of numbers zs?

a) The sum of the elements in the list zs

b) The number of elements in the list zs

d) The number n times the length of the list zs

d) The value n!