Which event led for a call to strengthen the articles of confederation?

How did the songhai empire strengthen islam

How has the elimination of trade barriers affected the movement of goods among member countries of the european union? a. member countries are able to produce all the goods they need. b. goods can move freely among member countries. c. member countries no longer need to trade with countries outside the eu. d. larger countries are able to import more goods than smaller ones.

What are the major political parties? how do they affect elections? will give brainliest