What is defined as a blueprint for creating objects?

The correct answer is the concept of a class. In programming, particularly in object-oriented programming (OOP), a class serves as a blueprint or template from which objects are created. It defines the properties (attributes) and behaviors (methods) that the objects instantiated from the class will have.

Classes encapsulate data for the object and methods to manipulate that data, making it possible to create multiple objects with similar attributes and behaviors without rewriting code. This encourages reusability and modularity in code.

Understanding classes is crucial as they are foundational to OOP principles, allowing for organized code that is easier to manage and scale. The concept of classes helps developers build complex systems by creating logical groupings of functionality and data.