How did the United States' entry into World War I affect American public policy at home?

A. It increased government support for organized labor and farm cooperatives.

B. It encourages trust-busting activities and renewed focus on economic regulation.

C. It tightened restrictions on free speech and other civil liberties.

D. It expanded civil rights reforms and restricted discriminatory practices.

The right answer is: C) It tightened restrictions ( ...) civil liberties. At the moment the war breaks out, the entire nation begins a recruitment campaign, which it looks for all those young men, of fighting age, to be trained and sent to Europe, it is at this moment where they begin to generate opinion shocks between those who agree with participation in the conflict and those who see as an irrational thing that these men were sacrificed.