Answer:
Option B) Machines were invented that could do work formerly done by people
Thomas Jefferson authorized the Louisiana Purchase despite questions about Constitutional provisions. Many including Jefferson himself questioned whether it was Constitutional or not for the U.S. Government to purchase new territory, however, in the end he decided to move through with the Louisiana Purchase.
Great Britain was the most powerful of the North American colonizers. Their grasp over the Hudson Bay was very profitable.
Answers:
The Islamic empire extended into North Africa.- C)
The gold-salt trade brought Islamic Arabs into western and southern Africa. - D)