Final answer:
In Visual Basic, an object is a reusable self-contained unit that combines data and the methods needed to manipulate that data. It is foundational to object-oriented programming in VB.
Step-by-step explanation:
An object in Visual Basic can best be described as a reusable self-contained unit that combines data and the methods needed to manipulate that data. Objects are the building blocks of object-oriented programming, encapsulating both the attributes (data, often referenced as properties) and behaviors (methods, i.e., functions or subroutines) in a single entity. For instance, if you create a 'Car' object, it might have properties like color and make, and methods like drive or brake.
An object in Visual Basic is a reusable self-contained unit. It is a programming construct that represents a specific instance of a class. Objects encapsulate both data and behaviors, allowing programmers to create complex and modular code.
For example, let's say we have a class called 'Car' in Visual Basic. An object of this class could represent a specific car with its unique characteristics, such as color, model, and speed. The object would have data properties to store these characteristics and methods to perform actions like accelerating or braking.
Thus, option d. is correct: an object in Visual Basic is a reusable self-contained unit that encapsulates both data and behaviors.