B. It is the world's oldest functioning constitution, created and presented in september 1787, acting as the supreme law of the United States of America. It has received 27 amendments in order to adapt to a nation that is continuously changing and evolving, but the foundations and the statementsabout the functioning of the state still prevail.
Britain still had a substantial amount of colonies and gradually decolonized overtime. The French wanted older colonies back in their possession such as South-East Asian nations of Laos, Cambodia and Vietnam.