Answer:
B. Global winds
C. Solar radiation
Explanation:
Ocean current is can simply be define as water in motion and can be observed easily in oceans. When the global wind blows, it enforces the molecule sof water at the upper region of the ocen to move. This causes ocean current.
Solar radiation causes uneven heating (variation in temperature) of sections of the water, thus variation in density. This forces the molecules into motion.
The Catholic Church became corrupted, due to its overgrown power. Because of the Pope's overspendings, the Pope started the Sales of Indulgences. The Sales of Indulgences was a scheme to earn more money. It made people spend money so that they/family members go into heaven. This upsetted a reformer, Martin Luther. That started the Reformation. So in summery, the Catholic Church gained to much power ( more than the nobility) and it wanted more money. BTW, this only a little bit of it.
So that when they would trade for good they would save time and money.