Answer:
Option: b. Coronado
Explanation:
The Spanish explorer and conquistador in the 16th century, Francisco Coronado heard reports of the so-called Seven Golden Cities located to the north. He led a group of Spaniards, Indians, and Africans on a search for the cities in the southwestern part of the united states. For two years, Coronado looked for with no success, but discover the Grand Canyon and other landmarks of the region. Upon coming to realize that the seven cities of gold did not breathe, Coronado wrote a report to the Spanish governor in which he said: "I can assure you....." It was Fray Marcos in Coronado report.