I believe this is C, because the before and after when the media was involved changed.
Correct answer: C. The start of the Russian Revolution
Detail: The USA declared war in April, 1917. There was some revolution activity in Russian the spring of 1917, but the main "Russian Revolution" as led by the Bolsheviks started in October, 1917.
Context:
Public outrage in the US against the Germans swept the nation following the sinking of the British ocean liner, Lusitania -- but that happened before 1917. When a German U-boat (submarine) sank the Lusitania in May, 1915, over 1,000 persons were killed, including more than 100 Americans. The passenger liner was targeted by the Germans because they suspected weapons were being shipped to Britain in the cargo hold of the ship.
Germany managed to stave off American entry into the war at the time by pledging to stop submarine attacks. But a couple years later they resumed such attacks, and there was also an intercepted telegram (the "Zimmerman Telegram") that showed Germany was trying to secure Mexico as an ally against the United States.
In 1917, the US declared war on Germany in response.
Answers A and D I am pretty sure but don't trust me.
Answer:
Impact of World War II on the U.S. Economy and Workforce America's involvement in World War II had a significant impact on the economy and workforce of the United States. The United States was still recovering from the impact of the Great Depression and the unemployment rate was hovering around 25%.
Explanation: