1. Key words are trade and tariffs. Only economic terms
Answer:
The Protestant Reformation was a threat to the power that the Catholic Church had over Europe because the Catholic Church got all of their money from the members of the church. The Church sold indulgences to the people and told the people that if they did not buy indulgences, then they or their loved ones would not go to heaven. Protestants did not believe in the sell of indulgences, so this would cut the Catholic Church's money supply off big time.
They caused inflation to rise.
(Just had this question on my test and noticed nobody answered. Sorry it was late)