How did The Crusades contribute to the Age of Exploration?

Responses
A They created a desire to spread Christianity among the American natives.They created a desire to spread Christianity among the American natives.
B They created a desire in Europe for new products and new trade routes to the East.They created a desire in Europe for new products and new trade routes to the East.
C The democratic spirit which accompanied the conquests of the Crusaders swept across Europe.The democratic spirit which accompanied the conquests of the Crusaders swept across Europe.
D The establishment of sea routes used by the Crusaders which rounded South America made exploration easier.

B They created a desire in Europe for new products and new trade routes to the East.