A company is developing a new software application using object$-$oriented programming $($OOP$)$ principles. They have created several classes, including a User class and a Product class. The User class has instance variables for name, email, and password, while the Product class has instance variables for name, description, and price. Which OOP principle allows the Product class to inherit instance variables and methods from the User class?

Question $5$ options:

Encapsulation

Polymorphism

Inheritance

Abstraction.