The Monroe Doctrine's main purpose was to "<span>D. to warn European nations not to form new colonies in the Americas". It was a declaration of true sovereignty in the US. </span>
The correct answer is: Many Americans were scared that their bank was going to fail.
According to President Roosevelt, Bank runs were caused by many American who were scared that their bank was going to fail. The people were scared that Roosevelt would abandon the gold standards thus leading the increased bank runs. Citizens lost confidence in the American banking system thus rushed to withdraw their savings before bank runs made their banks bankrupt.
De Tocqueville wrote is masterwork, "Democracy in America" after touring the country. He found that the nation was strong, but that racial disparities and voting discrimination made the democracy very flawed