Which sentence shows correct capitalization?

Mr. Brown always makes his students read both the Bill of Rights and the Constitution of the United States.

Mr. Brown always makes his students read both the Bill Of Rights and the Constitution of the United States.

Mr. Brown always makes his students read both the Bill of Rights and the constitution of the United States.

Mr. Brown always makes his students read both the bill of rights and the constitution of the United States.

Mr. Brown always makes his students read both the Bill of Rights and the Constitution of the United States.