What was the mission of Coronado’s expedition?

My notes have failed me again ;-;

Francisco Coronado was a Spanish governor in modern day Mexico who went on to explore the southwest United States. His expedition was one that was prompted by stories of myth and riches. He was looking for the fabled Seven Cities of Gold. This journey took him into new areas not yet previously explored by Europeans.

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.

c) troops march forward in close formation against newer, more accurate weapons