What happens if you attempt to modify a frozen object's property?

The correct answer highlights an important characteristic of frozen objects in JavaScript. When an object is frozen using Object.freeze(), it prevents any changes to the object's properties, maintaining the integrity and immutability of that object. Therefore, if you attempt to modify a property of a frozen object, the change will not take effect, and the original value will remain unchanged.

This behavior is significant because it enforces a level of immutability, making the object stable and predictable throughout the execution of the program. While the modification attempt is silently ignored in non-strict mode, the key takeaway is that the original state of the frozen object is preserved.

The other answer choices each present scenarios that misrepresent how frozen objects operate. For instance, saying that the change will succeed silently implies that the modification actually takes effect, which contradicts the mechanics of frozen objects. Similarly, saying that modification is allowed only through reassignment suggests that one can still alter properties when the object is frozen, which is not true. In short, the essence of this concept is centered around immutability and the specific behaviors brought about by freezing an object.