Answer:
Option B. James Monroe and Thomas Jefferson were responsible for arranging the purchase of the Louisiana Territory
Explanation:
Thomas Jefferson who was the then president of US decided to buy the huge land called Louisiana from France during 1803. It was most significant fir Jefferson to purchase this huge land which was twofold the size of present US.
Jefferson, fretted that the Louisiana Purchase would not be successful due to the supremacy of the French King Napoleon Bonaparte, who desired to establish his empire in North America. But fortunately, Napoleon permitted to spend this huge piece of land.
Jefferson who was a federalist believed that the states were given undue power than the central Government but when this treaty came for execution, Jefferson made a quick measure to ratify this deal successfully and quickly.