Answer:
The correct answer is D. The nation that benefitted the most from the Seven Years' War was Great Britain.
Step-by-step explanation:
The Seven Years' War was a series of international conflicts between early 1756 and the end of 1763 to establish control over Silesia and colonial supremacy in North America and India. They took part, on the one hand, the Kingdom of Prussia, the Kingdom of Hanover and the Kingdom of Great Britain together with their American colonies and, some time later, their ally the Kingdom of Portugal; and on the other hand the Kingdom of Saxony, the Austrian Empire, the Kingdom of France, the Russian Empire, Sweden and the Kingdom of Spain, the latter from 1761.
The great winner of this conflict was Great Britain, which as a result of its victory in the battlefield obtained from France the territories of Senegal and the possessions in India with the exception of Mahe, Yanam, Puducherry, Karaikal and Chandernagor, which France would conserve well into the twentieth century. In America it received all the French territories in Canada, the territories east of the Mississippi River and west of the Appalachian Mountains (except New Orleans), Dominica, Grenada, St. Vincent and Tobago. From Spain, it received Florida in exchange for withdrawing troops stationed in the city of Manila (Philippines) and in the port of Havana (Cuba), and got the right of free navigation on the Mississippi River.