What key detail in "wilson's war message to congress" supports his argument for entering the war?
the german government acted impulsively by starting the war.
germany has sunk sea vessels regardless of the vessel’s nationality.
the people of the united states have sympathy for the germans.
germany has complete control of many european ports.

Answer:

(B) Germany has sunk sea vessels regardless of the vessel’s nationality.

This key detail in "Wilson's War Message to Congress" supports his argument for entering the war

Explanation:

Though during the period of 1914 and 1915, America decide to stay neutral to the war but when in 1917, Germany sunk all the vessels ships regardless of it’s nationality while approximately 128 of American lives were lost due to the reckless act of the German government.

The ships carried ammunition for Britain which were sunk mercilessly without seeing the flag of neutrality or American flag in them. This made Wilson to finally send the message of war to congress in Germany about the official announcement of war.

c) troops march forward in close formation against newer, more accurate weapons