A way to divide countries, states and cities i the best way to define sectionalism. The correct option among all the options that are given in the question is the first option or option "A". It can also be defined as a kind of political loyalty to a person's region or state. I hope the answer comes to your help.
Education reform lead by Horace Mann was a major reform movement in the early 1800's. He helped create mandatory public education for all in the United States.
The intent for the separation of powers is to prevent the concentration of power and provide for checks and balances.
The first ten amendments are called the Bill of Rights.
The Space Age is thought to have officially begun on October 4th, 1957, with the launch of Sputnik 1 by the Soviet Union – the first artificial satellite to be launched into orbit.