Question

russian revolution
after the russian revolution, each city in russia had a local council called a
caucus.
congress.
duma.
soviet.

Explanation:

After the Russian Revolution, local councils in Russian cities were called soviets. A caucus is a meeting for political discussion, a congress is a formal assembly, and a duma was a pre - revolution legislative body in Russia. So the correct term for the local council after the revolution is soviet.

Answer:

soviet.