C) is not a goal in informative speaking
the answer to the opposite of heat is cold
Answer: The Rosetta Stone was discovered in the nineteenth century in ancient Egypt by expert scholars.
This sentence is the best one as a thesis if the only source of information is this passage. The other sentences add information that has not been mentioned before (the stone's role in deciphering hieroglyphs, the material it is made out of or its impact on tourism). This sentence does not add information and at the same time summarizes the most important elements of the passage.
