In the context of World War II, the 'Big Three' consisted of the leaders of the three most powerful countries on the side of the Allies. They were Winston Churchill, the Prime Minister of Great Britain, Franklin D. Roosevelt, the President of the United States, and Joseph Stalin, the Premier of the Soviet Union.
https://study.com/academy/answer/who-were-the-big-3-in-world-war-ii.html
The five freedoms it protects: speech, religion, press, assembly, and the right to petition the government. Together, these five guaranteed freedoms make the people of the United States of America the freest in the world. ... If you're in the U.S., you have freedom of speech, religion, press, assembly and petition.
"<span>a. the size of their military" would be the best option from the list, since they greatly outnumbered the colonists and their militias. They were also far-better trained as soldiers. </span>
