What is the main idea of this excerpt from an article in the U.S. Constitution?

"The House of Representatives shall be composed of Members chosen every second Year by the People of the several States, and the Electors in each State shall have the Qualifications requisite for Electors of the most numerous Branch of the State Legislature. No Person shall be a Representative who shall not have attained to the Age of twenty five Years, and been seven Years a Citizen of the United States, and who shall not, when elected, be an Inhabitant of that State in which he shall be chosen."

A. The Constitution establishes the qualifications for congressional representatives, as well as specific rules for their election.
B. The Constitution establishes two houses of Congress: the House of Representatives and the Senate.
C. The Constitution specifies that each state will select two representatives to serve in the House of Representatives.
D. The Constitution identifies specific qualifications for the officials serving at all levels of the government, including the presidency.