Spanish explorers heard grand tales >about rich treasures< in the land to the north of Mexico.
The phrase in the arrows is _____.
1. a prepositional phrase acting as an adverb
2. an appositive phrase renaming tales
3. an appositive renaming tales
4. a prepositional phrase acting as an adjective
"about rich treasures" is a prepositional phrase because the word "about" is used as either an adjective, adverb, or preposition. It is describing or reffering to the "rich treasures".