The correct answer is D. It provided no territory gain or loss for the united states.
The Treaty of Ghent was a treaty that was signed between the US and the United Kingdom in 1814 and it restored the relations between the nations to quo ante bellum status. Letter D is correct because it was returned to the US about 10 approximately 10,000,000 acres (4,000,000 ha; 40,000 km2) of territory (located in Lakes Superior, Michigan and Maine). Upper Canada areas were returned from the US to British control and Spanish Florida that was American territory was returned to Spanish control.