Which of these is a private data field?

def Demo:
def __init__(self):
    __a = 1
    self.__b = 1
    self.__c__ = 1
    __d__= 1

What is the main goal of object-oriented programming (OOP)?

A. To model real-world entities and their interactions

B. To maximize efficiency

C. To use fewer lines of code

D. To create simple programs

What is an object in the context of object-oriented programming?

A. A specific data type

B. A built-in function

C. An instance of a class

D. A variable in Python

What is a class in the context of object-oriented programming?

A. A blueprint for creating objects

B. A built-in function

C. A variable in Python

D. A specific data type

Which principle of OOP promotes the reusability of code and allows a class to inherit properties and methods from another class?

A. Polymorphism

B. Abstraction

C. Inheritance

D. Encapsulation