Hello! I'm looking for some help with A through D on this question! I tried plugging it into python and haven't gotten any results. Help?

def f(x): if len (x)>0: return x[0] else: return ' x ' def g(x,y): if x>0: return f(y)x else: return f(y) def h(x, list_y): a = ' for i in list_y: a +g(x, str (i)) x=1 a. What is the value of h(0,[1,2]) ? b. What is the value of h(3,[a ', 'b', ", 'd'])? c. What is the value of h(1,[) ? d. What is the value of h(4, 'spam')