Which group was spain’s most important ally?

a. creek indians
b. iroquois confederacy
c. navajo indians

Not the Iroquois Confederacy , the preferred the British.

Not the Navajo Indians, they hated the Spanish after they took their land and kidnapped their people.

This means it was the Creek Indians.

Have a great day! :)

explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.