The correct answer is C) ratification by the individual states.
Once a Constitutional Amendment has been proposed (either by the States or the federal legislature), the selection below that is the next step in the ratification process is "ratification by the individual states."
Constitutional amendments must be approved by three-fourths of the states.
The founding fathers designed the proper system to amend the Constitution, since the Constitutional Convention times in Philadelphia, Pennsylvania.
The famous Bill of Rights, written by James Madison, is the first ten amendments to the United States Constitution that were ratified in 1791 and needed the approval of three-fourths of the states to make them valid. The Constitution has been amended 27 seven times. The last one was the 27th, passed to prohibit legislators to raise their own salaries.