Which advertising technique did Pharaoh Khufu use to promote the Great Pyramid of Giza and ensure his brand recognition for eternity?

The Great Pyramid of Giza wasn't just an architectural marvel—it was also one of history's most ambitious 'product launches.' Like modern corporations with their flagship offerings, ancient Egyptian rulers needed to promote their grand projects to justify resources and cultivate their brand image. This trivia question explores how pharaohs used early advertising and brand recognition techniques to ensure their monuments would stand the test of time—both physically and in public memory.

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Placing his cartouche (royal name symbol) on all exterior limestone casing blocks to create massive brand visibility
Hidden inscriptions inside sealed chambers that claimed supernatural powers would strike anyone who failed to speak his name
Distributing clay miniature pyramids to nobility as promotional items that displayed his royal seal
Commissioning traveling storytellers to spread tales of the pyramid's construction throughout neighboring kingdoms