The correct answer is 1. A string of shells
Step-by-step explanation:
The Iroquois constitution from which the excerpt presented was taken was a document that established the principles for government and laws of the Iroquois community. In this excerpt, details related to the role of "lord" are explained, the first detail states that is it necessary for new lord or candidates for lord to "offer a pledge of four strings of shells", this means before the lord officially joints the council he should give other members four string of shells to show his "pledge" or promise to be committed with the council and the community. Therefore, according to the Iroquois Constitution, a candidate should offer "a string of shell" before joining to the council.