HELP ME PLZ AND THANKS Which factor contributed to the United States’ involvement in World War II? A a surprise attack on a U.S. naval base
B the widespread use of yellow journalism
C the protection of U.S. foreign investments
D a utilization of unrestricted submarine warfare

C

Explanation:

a

Explanation:

it was a suprise military attack by the imperial Japanese naval air service upon the united states against the naval base at pearl harbor in Honolulu, Hawaii.

Shorter version and less historical- it was an attack on pearl harbor that suprised the united states and forced them to join cause the united states to go into the great depression.

A

Explanation:

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