a and b identical? equal? or error for each one

Choose the correct answer for each question regarding the program. def isIdentical(a, b): if a is b: print(a, "is identical with", b) else: print(a, "is not identical with", b) def isEqual(a, b): if a == b: print(a, "is equal to", b) else: print(a, "is not equal to", b) a = 1 b = None #Line A| isIdentical(a, b) isEqual(a, b) What does the output indicate? What does the output indicate if Line A is replaced by b = 1.0 What if Line A is replace by b = 1 What if Line A and the previous are replaced by a = None and b = None