Is the following Python code correct?

>>> class A:
	def __init__(self,b):
		self.b=b
	def display(self):
		print(self.b)
>>> obj=A("Hello")
>>> del obj

A. A blueprint for creating objects B. A built-in function C. A specific data type D. A variable in Python

A. Using the class keyword B. Using the define keyword C. Using the classdef keyword D. Using the class method

A. Instances of a class B. Built-in functions C. Special data types D. Global variables

A. Using the class name and parentheses B. Using the create() method C. Using the new keyword D. Using the object() method