Final answer:
In Object-Oriented Programming, data and methods are stored together within objects, which are created from class blueprints defining properties and behaviors.
Step-by-step explanation:
In Object-Oriented Programming (OOP), data and methods are stored together. This paradigm revolves around the creation of objects, which are instances of classes. Classes define a blueprint for objects and encapsulate both data, in the form of attributes (sometimes referred to as properties), and behaviors, in the form of methods (also known as functions or procedures within the context of the class).
Each object created from a class can maintain its own set of data values, and the methods defined within the class describe the operations that can be performed on this data. This close association of data and the methods that operate on it allows for the abstraction and encapsulation that are hallmarks of OOP. Thus, data and methods are the correct option that represents what are stored together in an object in OOP.