What type of informational text is James Cross Giblin’s The Riddle of the Rosetta Stone? an autobiography that describes the author’s lifelong attempts to translate the Rosetta Stone a memoir about the year the author spent researching the Rosetta Stone a history of the discovery of the Rosetta Stone and many people’s attempts to translate it a biography of the life of the Rosetta Stone’s original author

A history of the discovery of the Rosetta Stone and many people's attempts to translate it.

Explanation:

In The Riddle of the Rosetta Stone, James Cross Giblin describes the discovery and translation of the Rosetta Stone, a stone found in 1799. Giblin gives the readers an account of the Ancient Egyptian hieroglyphs, and points out the historical importance of Rosetta Stone which dates back to 196 BC. The stone now has inscriptions in two languages, while Giblin describes how different people struggled with translating it.

The answer is C!

Explanation:

A history of the discovery of the Rosetta Stone and many people's attempts to translate it.

Rosetta Stone is a stone which was explored in the year 1799 and has inscriptions in 3 scripts and 2 different languages.

Rosetta Stone holds its own importance in history because it was discovered as earlier as 196 BC.