What keyword is commonly used to control class access in programming?

The correct answer, Access Modifier, refers to keywords in programming languages that define the visibility and accessibility of classes, methods, and other members. These keywords control how and where classes and their members can be accessed. Common access modifiers include public, private, and protected, which determine whether other classes or instances of classes can interact with a certain class or method.

Access Modifiers play a crucial role in encapsulation, a fundamental concept in object-oriented programming. By using these modifiers, developers can restrict access to certain parts of a program, thereby protecting the integrity of the data and preventing unintended interference or misuse from other parts of the code.

Other choices relate to concepts that do not specifically govern access control in the same way. For instance, Class Attribute refers to a variable associated with a class rather than its access controls, and Access Control is a broader term that does not specifically denote the keywords used in programming languages. Object Property generally pertains to characteristics or attributes of objects rather than the access level assigned to them. Therefore, Access Modifier is the term that accurately represents the mechanisms used to regulate access to classes and their members.