Which of the following statements about abstraction is true?

The statement about abstraction that is true explains how it simplifies interfaces by concealing the intricate details of implementation from the user. Abstraction is a fundamental concept in object-oriented programming that allows developers to create a clear and simplified model of a system by highlighting essential features while obscuring non-essential details.

This means that users interact with high-level functionality without needing to understand the complexities behind how that functionality is achieved. By focusing on what an object does rather than how it does it, abstraction promotes easier usage, better maintainability, and scalability of software.

The other statements miss the mark on the essence of abstraction. For instance, claiming that abstraction is unnecessary in complex software ignores the fundamental benefits it provides in managing complexity. Stating that it involves exposing all parts of an object contradicts the purpose of abstraction, which is actually to limit what is visible and thus simplify interaction. Lastly, the idea that abstraction guarantees code execution regardless of object behavior suggests a misunderstanding of how abstraction works, as it does not ensure or dictate behavior; rather, it allows the behavior to be defined by the implementation while focusing on the interface instead.