There were numerous British regiments across the 13 colonies.
"regular, free elections" is the best option in terms of something that limits the power of the US government, since if elected officials become tyrannical, they can simply be removed during the next election cycle
Inflation causes the price of goods and services to increase over time
Option B i.e North Atlantic Treaty Organization (NATO) is the correct answer.
In 1949, the United States, Canada, Iceland and other nine western nations (Belgium, Denmark, France, Italy, Luxembourg, the Netherlands, Norway, Portugal, the United Kingdom ) founded NATO. It is a military alliance which was established to provide collective security against the Soviet Union.