Question

which of these actions did the united states take immediately after the attack on pearl harbor?
the us evacuated citizens from the west coast.
congress voted to continue its isolationist policy.
american forces sailed to japan and began to attack it.
congress declared war on japan the next day.

Explanation:

After the Pearl Harbor attack on December 7, 1941, the US Congress declared war on Japan on December 8, 1941. The US did not evacuate citizens from the West - Coast immediately. The attack ended the isolationist policy. American forces did not sail to Japan and begin attacking it immediately.

Answer:

Congress declared war on Japan the next day.