Based on the facts presented in The Riddle of the Rosetta Stone, the rock slab is called the "Rosetta Stone” because it is named

The Rosetta Stone was named for Rosetta, the town in Egypt near where the slab was discovered. It was not named for a pharaoh, Napoleon’s mother, or the officer who found it. Therefore, the correct choice is after the town near where it was discovered.

AI-written and checked against the verified answer.