The correct answer to this open question is the following.
Although there are no options attached we can say the following.
What is being shown in the poster? Who are the people shown?
It is a graphic or cartoon representation of Britain's Day on December 7, 1918, to celebrate the friendship and collaboration of the United States and Great Britain during World War I.
What do the animals shown here represent?
The Eagle is an important symbol of the government of the United States. For instance, the Eagle appears in the Official Seal of the United States. On the other hand, the Lions is the animal that represents the government of Great Britain, It can be found in different documents and monuments in England.
What was Britain’s Day on December 7th, 1918? Why is that date important?
The day is important because the union of these two countries was of the utmost importance to win World War I by defeating the powerful German Army, and its allies, the Austria-Hungary Empire and the Ottoman Empire.
Using the information we have learned from this poster, what inferences can we make about the United States’ involvement in WWI?
The United States' help with its powerful army and war supplies was a big factor to win the war. The union of the two countries made things happened.