D) the United States and the Soviet Union
The Atlantic slave trade or transatlantic slave trade involved the transportation by slave traders of enslaved African people, mainly to the Americas. The slave trade regularly used the triangular trade route and its Middle Passage, and existed from the 16th to the 19th centuries. The vast majority of those who were enslaved and transported in the transatlantic slave trade were people from central and western Africa, who had been sold by other West Africans to Western European slave traders, who brought them to the Americas. The South Atlantic and Caribbean economies especially were dependent on the supply of secure labour for the production of commodity crops, making goods and clothing to sell in Europe. This was crucial to those western European countries which, in the late 17th and 18th centuries, were vying with each other to create overseas empires.
<span>It was by their independence in 1776 and they had a policy of mercantilism and a high degree of autonomy and they resisted to the demands of London for a greater control. The Seven Years War left the three European kingdoms (Britain, France, and Spain) in bankruptcy and thanks to the thought developed in the century of the lights would provoke in them a feeling of independence. Each of these colonies developed its own system of government, and, they voted in favor of its local government. In this way, they had a collective change of identity.</span>