Which phrase can be used to accurately complete the diagram? industry in the united states agrees to federal regulation industry in the united states becomes increasingly consolidated the labor movement succeeds in organizing workers the long depression increases unemployment rate

The phrase which can be used to accurately complete the diagram is this: THE INDUSTRY IN THE UNITED STATES BECOMES INCREASINGLY CONSOLIDATED.
Because the industries in the United states become more consolidated, the congress passed the Sherman Antitrust Act, thus, President Roosevelt became known as the trust buster. Due to this, several American companies had to break up.

Both the han and the roman empire decline as a result of social unrest during their collapse.

It's most likely choice a, it makes the most sense in my opinion.