In the last sentence from the first paragraph of the passage, what does brevity mean?

American troops were worried about cantracting in cuba a. yellow fever b. hepatitis c. polio

The development of greek culture was most influenced by the dorian invasion the region’s climate and geography the trojan war indo-european migrations

What governments allow the use of the initiative, the referendum, and the recall? a. all state governments and the federal government b. some state governments and the federal government c. some state governments d. all state governments