D.) is the correct answer.
Unrestricted submarine warfare, which became prominent in World War I, meant that submarines could sink any time of vessel at any time without warning. Before this, they had to surface first and place crews on lifeboats.
Answer:
The answer is A, it was to signify his loyalty to the colonists that wanted to separate from England.
13 years. It lasted from 1920 to 1933.
