Which programming paradigm is based on the concept of "objects"?

The choice of object-oriented programming is correct because this paradigm centers around the concept of "objects," which are instances of classes. In object-oriented programming, an object encapsulates both data and behaviors (methods) that operate on that data. This encapsulation allows for modeling real-world entities and promotes reuse through inheritance and polymorphism.

The focus on objects enables developers to structure software in a way that enhances modularity and maintainability, as each object can be managed independently yet still interact with other objects. This paradigm contrasts with the others mentioned, which do not emphasize the combination of data and behavior in the way object-oriented programming does.

For instance, functional programming primarily relies on functions and immutability, procedural programming is structured around procedures and routines rather than objects, and logic programming is based on formal logic and rules without the notion of objects. Thus, object-oriented programming distinctly defines itself through its use of objects, making it the correct choice in this context.