What is the significance of the anti-federalists and federalists in relation to the establishment of political parties? a)  when the constitution was being developed, the federalists and anti-federalists formed political parties and included them within the constitution. b)the political parties was the only thing that both the federalists and anti-federalists agreed upon. c)political parties have no relation to the federalists and anti-federalists because both disliked political parties. d)the differing views of the federalists and anti-federalists and its supporters were the catalyst for the american political parties.