PLEASE I DESPRITALLY NEED HELP Why was the Treaty of London in 1914 important to World War I?

It was a declaration of unity among Great Britain, France, and Russia
It was the start of Japan, Italy, and the US entering World War I.
It was the beginning of an alliance between Great Britain and Germany.
It marked the end of the war, as the Allies and Central Powers agreed to peace.

Explain how you think a president can have an impact on reform and progressivism. use examples of what roosevelt, taft, and wilson did. pls , i'm being timed. so much < 3

Why are people more likely to marry individuals with social and cultural backgrounds very similar to their own? a. parents and other family members always exert pressure to marry within the group. b. people spend a great deal of time alone, and therefore can have few opportunities for meeting people. c. people develop irrational fears of out-group members and are scared to date them. d. people have greater access to individuals like themselves.

A(n) is an alliance or collection of parties.