I'm pretty sure it was just A but I could be wrong.
It didnt provide slave labor for the large farming estates
Answer:
1. jerusalem - former capital of Judea often called the Holy City
2. knights - men with honorable rank who pledged to do good deeds
3. hospitalers - crusaders who were part of an organization that gave medical aid
4. alexandria - a city second and importance to Rome located on the Delta of the Nile River
Spanish explorers introduced many new ideas, technologies, animals, plants, and even diseases to the native people in the Americas.