Which of the following is an example of Augmented Reality (AR) ?

Augmented Reality (AR) enhances the real-world environment by overlaying digital information, such as images or data, onto what users see. Google Glass is a prime example of AR technology because it features a heads-up display that projects information directly into the user's field of view while they remain aware of their physical surroundings. This distinguishes it from Virtual Reality (VR), which creates a completely immersive, simulated environment that blocks out the real world. Therefore, VR games are incorrect as they do not blend digital content with reality. Blockchain ledger systems and autonomous robots represent different technological domains involving data security and artificial intelligence, respectively, rather than visual augmentation. Consequently, Google Glass is the only option that fits the definition of Augmented Reality by merging digital overlays with real-world perception.