The right option is; It is a fascinating artifact that can help people better understand the past.
Rosetta Stone is an ancient Egyptian stone discovered by a Frenchman called Bouchard in August 1799. The stone has inscriptions written in two languages (Egyptian and Greek) and in three writing systems (hieroglyphics, demotic script and the Greek alphabet). The inscriptions on the stone were written by a group of priests in Egypt to honour the Egyptian pharaoh. The inscription contains all the good things that the Egyptian pharaoh did for the priests and the people during his reign.