单选题 The passage supplies information for answering which of the following questions?

• (A) From which population centers did the migration of European conquerors issue?
• (B) How did the fact that the South American natives had entered a phase of empire-building affect their resistance to the European conquest?
• (C) What system of native governance was in effect at the time of the European conquest of the Americas?
• (D) Besides superior weaponry and strategy, what other advantages did the European-Americans possess in South America?
• (E) Whose production system was superior in South America, the Europeans' or the conquered peoples?