The land disputes with Great Britain over land ownership and use in North America were settled primarily by diplomatic negotiation. This is the explicit and formal acknowledgement of a government or of the national independence of a country. These negotiations normally occurs between two countries. The correct answer is B. Diplomatic negotiations.
The assination of archduke francis ferdinand
20- the commencement of Presidential Term and Succession
21- the repeal of the 18th amendment
22- Two-Term Limitation on President
23- District of Columbia Presidential Vote
24-Poll Tax Requirement in Federal Elections
25-Presidential Vacancy, Disability and Inability
26- being able to vote at 18
27-Congressional Compensation