Answer:In early 1917 Berlin forced the issue. Its declared decision on 31 January 1917 to target neutral shipping in a designated war-zone became the immediate cause of the entry of the United States into the war. Five American merchant ships went down in March.
Explanation:
During the Civil War (1861 – 1865), both the Union and the Confederacy organized their economies and civilizations to wage the war even though facing significant home front opposition. Even though Confederate leadership presented initiative and bold initial in the war, the Union eventually prospered due to better military leadership, more real strategies, key conquests, greater capitals, and the war annihilation of the South's setting and structure.
The Green Revolution was an agricultural revolution that incorporated the science of people like Norman Borlaug to get better crop yields and to make crops more disease resistant.
Someone who is running for a political office is known as a candidate. If a person is running for a presidential office, he or she is known as a presidential candidate. So the answer is C.Hope i helped.