Article V creates a two-stage process for amending the Constitution: proposal and ratification. An amendment can be proposed by two-thirds of both houses of Congress or... By two-thirds of state legislatures requesting Congress to call a national convention to propose amendments.
Any practices should best be based on a research - this is the correct answer. (a. child development and research) Research is the best source of actual knowledge, rather than people's best guesses (people's best guesses might lead government regulations, but it would be better if they also followed research results.).
<span>Liberty and union, now and forever, one and inseparable. your welcome</span>
A. Gross Domestic Product per capita.