A.a is not None

B.a ! =b

C.a () == 4

D.b () ==4

A.'AbC' lower () < 'AB'

B.'1' + '1' + '1' < '1' * 3'

C.'3.14' != str(3.1415)

D.121 + 1 != '!' + 2 * '2'

A.the arrows on a class diagram are always directed from a superclass towards its subclass

B.an object is a recipe for a class

C.encapsulation allows you to protect some data from uncontrolled access

D.inheritance is the relation between a superclass and a subclass

A.a ( ) == 4

B.a is not None

C.a ! = b

D.b ( ) == 4

A.ord("Z") - ord("z") -- ord("0")

B.len("""
""") == o

C.len('\'*) == 1

D.chr(ordCA') + 1) == 'B'