What is the best economics description of a market

Which statement best evaluates the impact of the 1929 stock market crash on europe? 1. the united states established high export tariffs to europe that reduced goods exported to germany. 2. the united states promoted domestic policy initiates that reduced jobs on american bases in europe. 3. the united states promoted isolationism that withdrew troops from europe causing germany to pay its own national defense. 4. the united states eliminated loans to europe that caused germany to default on its reparation payments to france.

This is the belief that a nation must develop and maintain a strong military force in order to pursue and defend its national interests.

Brainliestttme : describe the following event: increase in islamic extremism in the middle east