Beginner Intermediate Expert

def dosmth(d, d1):
    d.update(d1)

def dosmth1(d, k):
    return d.setdefault(k, 'ani')

def dosmth2(d):
    return d.get('pse', 'jo')

values = {1: 2}
b = dosmth1(values, 1)
c = dosmth(values, {1: 4})
d = dosmth2(values)

What is the value of the following variables at the end of the execution of the above script?

values:
b:
c:
d: