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.

b). (sounds as the best answer)

b. the right to wage war and make peace