The thing that the state could do if it disagreed with the national law. the state could have a special conviction to nullify the law.
The best answer is, A. The United States' interests in Latin America have often led to intervention.
For decades the United States has pursued a foreign policy agenda of democracy building, this is especially present in developing countries such as those in Latin America, Africa, and the Middle East. When the United States has been unsuccessful in influencing the political structure to its benefit through diplomatic means it often turns to military and revolutionary means. The headlines reinforce this foreign policy agenda which has played out in many Latin American countries.
Passengers and future inventors benefited from Robert Fulton's invention of the steamboat because passengers took a steamboat from New York City to Albany.
If wood chuck could chuck wood it would chuck as a much as a wood chuck wants
They actually needed really heavy machinery to be built so they would open even more jobs due to the need for machines. They also raised wages