Complete the code to produce "blue wolf" as an output. class pencil:
color = 'yellow'
hardness = 2
class pencilCase:
def __init__(self, color, art):
self. color = color
self. art = art
def __str__(self):
return self. color + " " + self. art
# main program
pencilA = pencil()

print (caseA)

limited to the pencil class

limited to the main part of the program

accessible to all parts of the program

limited to the pencilCase class