What did the Iroquois do when the beaver population declined in the middle of the seventeenth century? They moved east.
They moved west.
They moved south. ​

They moved west.

Explanation:

It is TRUE that the Iroquois MOVED WEST when the beaver population declined in the middle of the seventeenth century.

Initially, the Iroquois hunted for Beaver as a major source for fur production, which they trade with the European settlers. However, following the decline of the animal in the area of present-day New York, the Iroquois moved westward to hunt for more Beavers in the area of Ohio county.