The answer is Long Barrack. The Construction of the Convento
(or Long Barrack) started in 1724, before long after the mission was repositioned
to this site. Records designate it was accomplished in 1744. The Long Barrack
has go through numerous renovations and restorations. In 1847 the U.S. Army fixed
the structure.
The United States and Great Britain argued over the international boundary between British North America (Canada) and Maine. The compromise resolution won a mutually accepted border between the state of Maine and the provinces of New Brunswick and Quebec. <span>The United States got more land. This treaty awarded 7,015 square miles (18,170 km2) to the United States and 5,012 square miles (12,980 km2) to Great Britain. </span>
The answer is B. Located on a high cliff overlooking the river