What is the difference between a class and an object?

• A. A class is specific to one instance, while an object is a blueprint
• B. A class serves as a blueprint for creating objects; an object is an instance of that class
• C. An object cannot exist without a class
• D. A class is not defined in programming

Answer: (B)

A class serves as a blueprint for creating objects, encapsulating data and behaviors that define what those objects will be like. It outlines the properties (attributes) and methods (functions) that the instances created from the class will have. An object, on the other hand, is a specific instance created from that blueprint. For example, if there is a class called "Car," the class defines what attributes like color and model a car has and what behaviors like driving or stopping it can perform. An object would be a specific car, such as a red Toyota Corolla, which embodies the characteristics and functionalities described by the "Car" class. This fundamental relationship allows for efficient organization of code and helps in modeling real-world entities in software development.