Select the correct answerWhich one is not supported by OOP?OptionsAbstractionEncapsulationGlobal variablesPolymorphism

Break Down the Problem

1. Identify the principles of Object-Oriented Programming (OOP).
2. Analyze each option to determine whether it is supported by OOP.

Relevant Concepts

1. Abstraction: Hiding complex details and showing only the essential features.
2. Encapsulation: Restricting access to certain details of an object, typically using access modifiers.
3. Global variables: Variables that are accessible from anywhere in the program.
4. Polymorphism: The ability to present the same interface for different underlying forms (data types).

Analysis and Detail

1. Abstraction is a fundamental principle of OOP, allowing for simplification of complex systems.
2. Encapsulation is another key principle, ensuring that data and methods are bundled within classes and protected from outside interference.
3. Global variables are not a feature of OOP; they can lead to code that is hard to manage and understand due to their unrestricted access.
4. Polymorphism is a core tenet of OOP, allowing methods to do different things based on the object it is acting upon.

Verify and Summarize

Upon analyzing the options, we find that abstraction, encapsulation, and polymorphism are all supported by OOP, while global variables are not.

Final Answer

Global variables are not supported by OOP.