Which quotation from the document most directly supports your answer to part a? a “the said states hereby severally enter into a firm league of friendship with each other, for their common defense, the security of their liberties, and their mutual and general welfare” (article 3, paragraph 5) b “no state, without the consent of the united states in congress assembled, shall send any embassy to, or receive any embassy from, or enter into any conference, agreement, alliance or treaty with any king, prince or state” (article 6, paragraph 14) c “the united states in congress assembled shall also be the last resort on appeal in all disputes and differences now subsisting or that hereafter may arise between two or more states concerning boundary” (article 9, paragraph 22) d “the articles of this confederation shall be inviolably observed by every state, and the union shall be perpetual” (article 13, paragraph 31)