A.the constructor must return a value other than None

B.the constructor is a method named __init__

C.the constructor must have at least one parameter

D.there can be more than one constructor in a Python class

A.2 2

B.1 2 3

C.1 3

D.2 2 3

A.prints 3

B.cause a runtime exception

C.print an empty line

D.print 0

A.it outputs 1

B.it outputs -1

C.it outputs 0

D.the code is erroneous and it will not execute

A.1

B.4

C.2

D.3