A.hasattr(obj_b, 'prop_aa')

B.VarA == 3

C.obj_b.prop_a == 3

D.isinstance(obj_c,A)

A.import pypack.module_a

B.import module_a

C.import module_a from pypack

D.from pypack import module_a

A.True

B.for

C.For

D.true

A.'True' not in 'False'

B.'phd' in 'alpha'

C.str(1-1) in '0123456789'[:2]

D.'deb' not in 'abcde' [::-1]

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 the more than one constructor in a Python class.