Answer: b. issue a declaration of war against Germany
Explanation:
As was the case in WW2, the United States was trying to avoid entering WW1. This gradually changed as time went on however especially with the sinking of the Lusitania by Germany in 1915 where 128 Americans died. The USA protested and Germany stopped sinking passenger ships.
In 1917 however, the Germans believed that if they restarted the sinking of ships the British would fall within 5 months and so they resumed. This cartoon shows the subsequent action of President Woodrow Wilson as he went before Congress and asked them to declare war on Germany.
