Which was the major cause for the entry of the U. S into World War 2

the bombing of pearl harbor.

Explanation:

when japan bombed pearl harbor the us was ready togo into war.

Although the war began with Nazi Germany's attack on Poland in September 1939, the United States did not enter the war until after the Japanese bombed the American fleet in Pearl Harbor, Hawaii, on December 7, 1941.

Explanation:

i also think it is c

the communist manifesto is an 1848 political pamphlet by the german near the end of the manifesto, the authors call for a "forcible overthrow of all existing social conditions",  ..