Which ancient Egyptian symbol was widely used as a 'royal brand' on products and buildings to signify pharaonic approval and ownership?

Throughout history, ancient civilizations developed sophisticated systems of visual recognition to denote power, authority, and identity. These early forms of 'branding' helped citizens identify official products, documents, and buildings. From royal seals to temple markings, these symbols functioned much like modern logos, creating instant recognition and trust. Test your knowledge about these ancient precursors to modern brand recognition systems!

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The cartouche (oval enclosure containing royal names)
The ankh (cross with a loop at the top)
The scarab beetle
The Eye of Horus