Which of the following best shows how the amendment process reflects the concept of federalism? a. amending the constitution requires a two-thirds vote in both houses of congress. b. amending the constitution requires ratification by three-fourths of the state legislatures. c. amending the constitution requires three-fourths of the popular vote. d. amending the constitution requires involvement by both the national and state levels of government.

The correct answer is the letter D: Amending the Constitution requires involvement by both the national and State levels of government.

Explanation:

The federal amendment process reflects the concept of federalism because is based on popular sovereignty, it means the people elect the representatives who vote to propose or ratify amendments. Federalism is, in general, a mode of political organization that combines a general government with regional governments in one political system; thus Amendments are proposed at the national level and ratified at the state level by legislatures or conventions.  

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

demand is the need and oportunity to buy a given good or service.