What will be the output of the following Python code?

class test:
     def __init__(self,a="Hello World"):
         self.a=a
 
     def display(self):
         print(self.a)
obj=test()
obj.display()

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