Which statement about the prototype property in JavaScript is true?

The prototype property in JavaScript is indeed available in all objects. In JavaScript, every function is an object, and all objects inherit from the Object prototype, which means they have access to properties and methods defined on it. When you create a custom object or function, JavaScript allows you to add properties and methods to the function's prototype object. This is a key feature that facilitates inheritance and allows objects to share methods and properties, promoting memory efficiency and providing a way to structure a program in a more organized manner.

The prototype chain is fundamental to how object-oriented programming works in JavaScript, as it allows objects to inherit behavior from their prototypes. This inheritance is not limited to just functions or specific kinds of objects but is a core aspect of JavaScript's object system as a whole, making it applicable to all objects created in the language, irrespective of how they are instantiated. This widespread availability ensures that shared functionality can be efficiently managed through prototypes.