The correct answer is A) disagreements about trading with the French.
American Indians in the St. Lawrence River region began to fight among themselves in the 1600s because of disagreements about trading with the French.
American Indian tribes in the 17th century were caused many times due to differences in trade matters. The Indian tribes had to ally themselves with European colonist for trade purposes and this caused divisions and conflicts. Some tribes allied with the Frech and some others with the Brittish. Among the many wars of the time, there was King William’s War od King George’s War.