The Count of Olivares Failed in His Efforts to Maintain

The count of Olivares failed in his efforts to maintain Spanish supremacy in seventeenth-century Europe because

A) there was a considerable drop in revenues from the New World.
B) Spain suffered a demographic crisis that resulted in a severe decline in population.
C) Catalonia and Portugal rebelled against the monarchy.
D) of resistance to the centralization implied in the Union of Arms.
E) All these answers are correct.