What was Europe's main goal during the Crusades? A: To remove the Pope from power B: To take back control of the Holy Land from Islamic forces C: To force Christians to convert to Islam D: To overthrow the city of Constantinople

One drawback of voluntary trade is that it a. requires two groups to use a common language b. can make one group dependent upon another for necessary goods c. doesn't occur unless there is a shortage of goods for at least one group d. forces groups to rely on themselves to produce all the goods they need