Read this quotation from the Iroquois Constitution.

A further meaning of this is that if any time any one of the Confederate Lords choose to submit to the law of a foreign people he is no longer in but out of the Confederacy, and persons of this class shall be called “They have alienated themselves.” Likewise such persons who submit to laws of foreign nations shall forfeit all birthrights and claims on the Five Nations Confederacy and territory.

According to this quotation, the Lords of the Five Nations Confederacy must

A. understand that foreign nations are a threat to the Iroquois.
B. prove their loyalty by publicly stating that they do not follow foreign nations.
C. prevent foreign members from joining the Five Nations.
D. follow the policies set forth in the Iroquois Constitution.