Answer:
The conquistadors who swept through the New World were armed with steel swords forged in the Spanish city of Toledo. Settler communities in North America and the Cape of Good Hope were able to capitalize on European-invented steel rails, steel locomotives and steel ships to transform their model European economies.
The correct answer among all the other choices is C. The feuds between religious and secular power over investiture. The fall of the western Roman empire contributed most directly to this circumstance. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
You would use more air conditioning in Miami.