Answer:
Correct answer is a. increased wealth due to colonization of the Americas, led Spain to finance wars in hopes of creating a catholic empire in Europe.
Explanation:
Option A is correct because the colonization increased the wealth of European countries, especially Spain. Spain wanted to spread its Empire, even in Europe, especially during the reign of Philip II.
Option B is not correct as the balance of power didn't exist as some countries had more colonies than other.
C is not correct as England didn't control South America.
D is not correct as Portugal did control Brazil, but wasn't as strong as Spain was.