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.
World War I. Main article: U-boat Campaign (World War I)
See also: Mediterranean U-boat Campaign (World War I)
<span>Submarine warfare in World War I was primarily a fight between </span>German<span> and Austro-Hungarian U-boats and Atlantic supply convoys bound for the </span>United Kingdom<span>, </span>France<span>, and </span>Russia<span>.</span>
